There are actions you can take to make your laptop battery last longer during each charge cycle and live longer over many cycles.Laptop battery always recommends following the instructions for charging and storage that came with the hp laptop battery or notebook. On this page we offer additional suggestions to help you get the most from your portable power supply.
1. Manage battery power more effectively in Windows
2. Make sure your battery gives the power you need, when you need it. Power Options in Windows XP allow you to control the power management features of your notebook PC.
3. Reduce the brightness of the screen to the minimum readable level. Use the Fn and F7 or F8 keys to adjust the brightness.
4. Remove peripherals when not in use. External hard drives, CD-ROMs, Zip drives, PC cards, and other peripheral devices can draw power from your battery even when they are not in active use. Disconnect them when you have finished using them.
5. Reduce the speed of your processor. The faster your computer works, the more quickly it uses up the supply of power. By cutting down on processor speed, you can extend the charge of your hp pavilion dv6000t battery. Methods to reduce processor speed vary from model to model, and your manual should provide instructions for doing so.
6. Turn off the Wireless On-Off button when it is not in use. If your notebook has one, press the Wireless On-Off button so that the light turns off.
7. Learn some 'Best Battery care practices'
Store Li-Ion batteries between 20°C and 25°C (68°F and 77°F) with 30% to 50% charge.
Do not leave batteries exposed to high temperatures for extended periods. Prolonged exposure to heat (for example, inside a hot car) will accelerate the deterioration of Li-Ion cells.
Remove the battery if the notebook will be stored (turned off and not plugged into AC power) for more than 2 weeks.
Remove the hp pavilion dv2000t battery if the notebook will be plugged into AC power continuously (via a wall adapter or docking station) for more than 2 weeks.
8. Calibrate the notebook PC battery.
Short discharges and recharges do not fully synchronize the battery's fuel gauge with the battery's state-of-charge. This can result in the amount of power available in one cycle being less than expected or the laptop battery meter being inaccurate.
Under normal usage, hp pavilion dv6000 series battery should be calibrated a minimum of once every 3 months.
We deal in replacement batteries such as laptop batteries, mobile phone batteries, digital camera batteries, camcorder batteries, power tools batteries, PDA batteries, two-way radio batteries, notebook battery for such as Sony, Canon, IBM, Toshiba, Compaq, HP. We guarantee that all products are Brand New with 1 Year Warranty and Fast Shipping.
2010年11月30日星期二
How to Check the Charge of a Dell Laptop's Battery
Do you have a Dell laptop but don't know how much charge it has? Can't turn the laptop on? Just about to go outside and wait for the taxi? This is help you with that task! dell xps m1330 battery
1. Take the laptop out of its case.
3. Flip it over onto it's top so you are looking at the bottom.
4. To identify the dell latitude d620 battery: Newer models have it underneath. Look for a gray or black rectangle. Older models may have it at the front, where you put CD drives and such.
5. For the newer ones that have the battery on the bottom, look on the dell latitude d630 battery for a little white rectangle with 5 lights on it. There will be a button next to them. Push it. The lights will come on. The number of lights will give you an estimation on how much it has left.5-Full. 4-80%. 3-60%. 2-40%. 1-20%. None-0%. If it is a half, the lights will stay on and the last one will blink. 4+1=90%. 3+1=70%. 2+1=50%. 1+1 =30%. Dell Inspiron 6000 battery
6. For the older ones, take out the battery and look in the inside, where the connector is. There should be the same as above, a little pad with 5 lights on it. Do that same as above.
Replacement Laptop Battery for dell u4873
Products ID : NDE031
Battery Type : Li-ion
Volt : 11.1V
Capacity : 6600mAh
Color : Black
weight : 575g
Dimension : 209.40x71.80x19.80mm
New, 1 Year Warranty!
Reg Price: CAD $ 58.56
Sale Price: CAD $ 40.99
Dell laptop battery details:
1. 100% new high quality Replacement dell gd761 laptop battery for Dell.
2. This Laptop Battery can be used for the other models and part No.
3. Great After-sales Service Department for dell laptop battery, fast respond to your request.
4. Full 1 year warranty.15 day money back guarantee for Dell laptop battery!
5. 100% compatible with original battery.
6. Fast delivery,we will deliver the laptop battery for inspiron 1525 battery in 24 hours after you order.
2010年11月29日星期一
How to Fully Discharge a Laptop Battery
Discharging the Battery Pack Disabling Hibernation To fully discharge the battery pack, disable Hibernation temporarily.
1. Write down the 3 settings in the Plugged In column and the settings in the Running on Batteries column, so you can reset them after calibration. settings in the Running on toshiba laptop battery column, so you can reset them after calibration.
2. Select the drop-down lists and set all 6 options in both columns to Never.
3. Select the Power Meter icon on the taskbar, or select Start > Control Panel > Performance and Maintenance > Power Options > Power Schemes
http://www.a1-webmarks.com/links-Tianzhen.html
4. Run the notebook on battery power until the battery pack is fully discharged. The battery light begins to blink when the battery pack has discharged to a low-battery condition. When the acer laptop battery pack is fully discharged, the power/Standby light turns off and the notebook shuts down.
5. Select the OK button.
6. Disconnect the notebook from the external power source, but do not turn off the notebook.
http://www.delicious.com/optionalbattery
1. Write down the 3 settings in the Plugged In column and the settings in the Running on Batteries column, so you can reset them after calibration. settings in the Running on toshiba laptop battery column, so you can reset them after calibration.
2. Select the drop-down lists and set all 6 options in both columns to Never.
3. Select the Power Meter icon on the taskbar, or select Start > Control Panel > Performance and Maintenance > Power Options > Power Schemes
http://www.a1-webmarks.com/links-Tianzhen.html
4. Run the notebook on battery power until the battery pack is fully discharged. The battery light begins to blink when the battery pack has discharged to a low-battery condition. When the acer laptop battery pack is fully discharged, the power/Standby light turns off and the notebook shuts down.
5. Select the OK button.
6. Disconnect the notebook from the external power source, but do not turn off the notebook.
http://www.delicious.com/optionalbattery
How to prolong lithium-based batteries
Battery research is focusing heavily on lithium chemistries, so much so that one could presume that all portable devices will be powered with lithium-ion batteries in the future. In many ways, lithium-ion is superior to nickel and lead-based chemistries and the applications for toshiba Satellite A100 Series lithium-ion batteries are growing as a result.
Lithium-ion has not yet fully matured and is being improved continuously. New metal and chemical combinations are being tried every six months to increase energy density and prolong service life. The improvements in longevity after each change will not be known for a few years.
A lithium-ion battery provides 300-500 discharge/charge cycles. The
toshiba pa3534u-1brs battery prefers a partial rather than a full discharge. Frequent full discharges should be avoided when possible. Instead, charge the battery more often or use a larger battery. There is no concern of memory when applying unscheduled charges.
Although lithium-ion is memory-free in terms of performance deterioration, batteries with fuel gauges exhibit what engineers refer to as "digital memory". Here is the reason: Short discharges with subsequent recharges do not provide the periodic calibration needed to synchronize the fuel gauge with the battery's state-of-charge. A deliberate full discharge and recharge every 30 charges corrects this problem. Letting the battery run down to the cut-off point in the equipment will do this. If ignored, the fuel gauge will become increasingly less accurate. (Read more in 'Choosing the right acer aspire 3000 battery for portable computing', Part Two.)
Aging of lithium-ion is an issue that is often ignored. A lithium-ion battery in use typically lasts between 2-3 years. The capacity loss manifests itself in increased internal resistance caused by oxidation. Eventually, the cell resistance reaches a point where the pack can no longer deliver the stored energy although the acer aspire 5100 battery may still have ample charge. For this reason, an aged battery can be kept longer in applications that draw low current as opposed to a function that demands heavy loads. Increasing internal resistance with cycle life and age is typical for cobalt-based lithium-ion, a system that is used for cell phones, cameras and laptops because of high energy density. The lower energy dense manganese-based lithium-ion, also known as spinel, maintains the internal resistance through its life but loses capacity due to chemical decompositions. Spinel is primarily used for power tools.
The speed by which lithium-ion ages is governed by temperature and state-of-charge. Figure 1 illustrates the capacity loss as a function of these two parameters.
Figure 1: Permanent capacity loss of lithium-ion as a function of temperature and charge level. High charge levels and elevated temperatures hasten permanent capacity loss. Improvements in chemistry have increased the storage performance of lithium-ion batteries.
The mentioning of limited service life on lithium-ion has caused concern in the
hp pavilion dv6000t battery industry and I will need to add some clarifications.
Let me explain:
If someone asks how long we humans live, we would soon find out that the longevity varies according to life style and living conditions that exist in different countries. Similar conditions exist with the batteries, lithium-ion in particular. Since Battery University bases its information on the feedback from users as opposed to scientific information derived from a research lab, longevity results may differ from manufacturer' specifications. Let's briefly look at the various living conditions of the lithium-ion hp pavilion dv2000t battery.
The worst condition is keeping a fully charged battery at elevated temperatures, which is the case with running laptop batteries. If used on main power, the battery inside a laptop will only last for 12-18 months. I must hasten to explain that the pack does not die suddenly but begins with reduced run-times.
The voltage level to which the cells are charged also plays an important role to longevity. For safety reasons, most lithium-ion cannot exceed 4.20 volts per cell. While a higher voltage boosts capacity, the disadvantage is lower cycle life. Figure 2 shows the cycle life as a function of charge voltage.
Figure 2: Effects on cycle life at different float charge levels (Choi et al., 2002)Higher charge voltages boost capacity but lower cycle life.
There are no remedies to restore lithium-ion once worn out. A momentary improvement in performance is noticeable when heating up the hp pavilion dv6000 series battery. This lowers the internal resistance momentarily but the condition reverts back to its former state when the temperature drops. Cold temperature will increase the internal resistance.
If possible, store the battery in a cool place at about a 40% state-of-charge. Some reserve charge is needed to keep the dell xps m1330 battery and its protection circuit operational during prolonged storage. Avoid keeping the battery at full charge and high temperature. This is the case when placing a cell phone or spare battery in a hot car. Running a laptop computer on the mains has a similar temperature problem. While the battery is kept fully charged, the inside temperature during operation rises to 45°C (113°F).
Removing the dell latitude d610 battery from the laptop when running on fixed power protects the battery from heat. With the concern of the battery overheating and causing fire, a spokesperson for the U.S. Consumer Product Safety Commission advises to eject the battery of affected laptops and to run the machines on a power cord. It should be noted that on a power outage, unsaved works will be lost. The question is often asked, should the laptop be disconnected from the main when not in use? Under normal circumstances, it should not matter with lithium-ion. Once the dell latitude d620 battery is fully charged, no further charge is applied. However, there is always the concern is malfunction of the AC adapter, the laptop or the battery.
A large number of lithium-ion batteries for cell phones are being discarded under the warranty return policy. Some failed batteries are sent to service centers or the manufacturer, where they are refurbished. Studies show that 80%-90% of the returned batteries can be repaired and returned to service.
Some lithium-ion batteries fail due to excessive low discharge. If discharged below 2.5 volts per cell, the internal safety circuit opens and the battery appears dead. A charge with the original charger is no longer possible. Some
dell latitude d630 battery analyzers (Cadex) feature a boost function that reactivates the protection circuit of a failed battery and enables a recharge. However, if the cell voltage has fallen below 1.5V/cell and has remained in that state for a few months, a recharge should be avoided because of safety concerns. To prevent failure, never store the battery fully discharged. Apply some charge before storage, and then charge fully before use.
All personal computers (and some other electronic devices) contain a
Dell Inspiron 6000 battery for memory back up. This battery is commonly a small non-rechargeable lithium cell, which provides a small current when the device is turned off. The PC uses the battery to retain certain information when the power is off. These are the BIOS settings, current date and time, as well as resource assignment for Plug and Play systems. Storage does shorten the service life of the backup battery to a few years. Some say 1-2 years. By keeping the computer connected to the main, albeit turned off, a battery on the PC motherboards should be good for 5-7 years. A PC should give the advanced warning when dell u4873 battery gets low. A dead back-up battery will wipe out the volatile memory and erase certain settings. After battery is replaced, the PC should again be operational.
Longevity of high-power lithium-ion
Generally speaking, batteries live longer if treated in a gentle manner. High charge voltages, excessive charge rate and extreme load conditions will have a negative effect and shorten the battery life. This also applies to high current rate lithium-ion batteries.
Not only is it better to charge lithium-ion dell gd761 battery at a slower charge rate, high discharge rates also contribute the extra wear and tear. Figure 3 shows the cycle life as a function of charge and discharge rates. Observe the good laboratory performance if the battery is charged and discharged at 1C. (A 0.5C charge and discharge would further improve this rating.)
Figure 3: Longevity of lithium-ion as a function of charge and discharge rates. A moderate charge and discharge puts less stress on the battery, resulting in a longer cycle life.Battery experts agree that the life of lithium-ion depends on other factors than charge and discharge rates. Even though incremental improvements can be achieved with careful use of the battery, our environment and the services required are not always conducive to achieve optimal battery life. The longevity of a inspiron 1525 battery is often a direct result of the environmental stresses applied.
Simple Guidelines
1. Avoid frequent full discharges because this puts additional strain on the battery. Several partial discharges with frequent recharges are better for lithium-ion than one deep one. Recharging a partially charged lithium-ion does not cause harm because there is no memory. (In this respect, lithium-ion differs from nickel-based batteries.) Short battery life in a laptop is mainly cause by heat rather than charge / discharge patterns.
2. Batteries with fuel gauge (laptops) should be calibrated by applying a deliberate full discharge once every 30 charges. Running the pack down in the equipment does this. If ignored, the fuel gauge will become increasingly less accurate and in some cases cut off the device prematurely.
3. Keep the lithium-ion battery cool. Avoid a hot car. For prolonged storage, keep the battery at a 40% charge level.
4. Consider removing the Sony VGP-BPS9/B battery from a laptop when running on fixed power. (Some laptop manufacturers are concerned about dust and moisture accumulating inside the battery casing.)
5. Avoid purchasing spare lithium-ion batteries for later use. Observe manufacturing dates. Do not buy old stock, even if sold at clearance prices.
6. If you have a spare lithium-ion battery, use one to the fullest and keep the
other cool by placing it in the refrigerator. Do not freeze the battery. For best results, store the battery at 40% state-of-charge.
Lithium-ion has not yet fully matured and is being improved continuously. New metal and chemical combinations are being tried every six months to increase energy density and prolong service life. The improvements in longevity after each change will not be known for a few years.
A lithium-ion battery provides 300-500 discharge/charge cycles. The
toshiba pa3534u-1brs battery prefers a partial rather than a full discharge. Frequent full discharges should be avoided when possible. Instead, charge the battery more often or use a larger battery. There is no concern of memory when applying unscheduled charges.
Although lithium-ion is memory-free in terms of performance deterioration, batteries with fuel gauges exhibit what engineers refer to as "digital memory". Here is the reason: Short discharges with subsequent recharges do not provide the periodic calibration needed to synchronize the fuel gauge with the battery's state-of-charge. A deliberate full discharge and recharge every 30 charges corrects this problem. Letting the battery run down to the cut-off point in the equipment will do this. If ignored, the fuel gauge will become increasingly less accurate. (Read more in 'Choosing the right acer aspire 3000 battery for portable computing', Part Two.)
Aging of lithium-ion is an issue that is often ignored. A lithium-ion battery in use typically lasts between 2-3 years. The capacity loss manifests itself in increased internal resistance caused by oxidation. Eventually, the cell resistance reaches a point where the pack can no longer deliver the stored energy although the acer aspire 5100 battery may still have ample charge. For this reason, an aged battery can be kept longer in applications that draw low current as opposed to a function that demands heavy loads. Increasing internal resistance with cycle life and age is typical for cobalt-based lithium-ion, a system that is used for cell phones, cameras and laptops because of high energy density. The lower energy dense manganese-based lithium-ion, also known as spinel, maintains the internal resistance through its life but loses capacity due to chemical decompositions. Spinel is primarily used for power tools.
The speed by which lithium-ion ages is governed by temperature and state-of-charge. Figure 1 illustrates the capacity loss as a function of these two parameters.
Figure 1: Permanent capacity loss of lithium-ion as a function of temperature and charge level. High charge levels and elevated temperatures hasten permanent capacity loss. Improvements in chemistry have increased the storage performance of lithium-ion batteries.
The mentioning of limited service life on lithium-ion has caused concern in the
hp pavilion dv6000t battery industry and I will need to add some clarifications.
Let me explain:
If someone asks how long we humans live, we would soon find out that the longevity varies according to life style and living conditions that exist in different countries. Similar conditions exist with the batteries, lithium-ion in particular. Since Battery University bases its information on the feedback from users as opposed to scientific information derived from a research lab, longevity results may differ from manufacturer' specifications. Let's briefly look at the various living conditions of the lithium-ion hp pavilion dv2000t battery.
The worst condition is keeping a fully charged battery at elevated temperatures, which is the case with running laptop batteries. If used on main power, the battery inside a laptop will only last for 12-18 months. I must hasten to explain that the pack does not die suddenly but begins with reduced run-times.
The voltage level to which the cells are charged also plays an important role to longevity. For safety reasons, most lithium-ion cannot exceed 4.20 volts per cell. While a higher voltage boosts capacity, the disadvantage is lower cycle life. Figure 2 shows the cycle life as a function of charge voltage.
Figure 2: Effects on cycle life at different float charge levels (Choi et al., 2002)Higher charge voltages boost capacity but lower cycle life.
There are no remedies to restore lithium-ion once worn out. A momentary improvement in performance is noticeable when heating up the hp pavilion dv6000 series battery. This lowers the internal resistance momentarily but the condition reverts back to its former state when the temperature drops. Cold temperature will increase the internal resistance.
If possible, store the battery in a cool place at about a 40% state-of-charge. Some reserve charge is needed to keep the dell xps m1330 battery and its protection circuit operational during prolonged storage. Avoid keeping the battery at full charge and high temperature. This is the case when placing a cell phone or spare battery in a hot car. Running a laptop computer on the mains has a similar temperature problem. While the battery is kept fully charged, the inside temperature during operation rises to 45°C (113°F).
Removing the dell latitude d610 battery from the laptop when running on fixed power protects the battery from heat. With the concern of the battery overheating and causing fire, a spokesperson for the U.S. Consumer Product Safety Commission advises to eject the battery of affected laptops and to run the machines on a power cord. It should be noted that on a power outage, unsaved works will be lost. The question is often asked, should the laptop be disconnected from the main when not in use? Under normal circumstances, it should not matter with lithium-ion. Once the dell latitude d620 battery is fully charged, no further charge is applied. However, there is always the concern is malfunction of the AC adapter, the laptop or the battery.
A large number of lithium-ion batteries for cell phones are being discarded under the warranty return policy. Some failed batteries are sent to service centers or the manufacturer, where they are refurbished. Studies show that 80%-90% of the returned batteries can be repaired and returned to service.
Some lithium-ion batteries fail due to excessive low discharge. If discharged below 2.5 volts per cell, the internal safety circuit opens and the battery appears dead. A charge with the original charger is no longer possible. Some
dell latitude d630 battery analyzers (Cadex) feature a boost function that reactivates the protection circuit of a failed battery and enables a recharge. However, if the cell voltage has fallen below 1.5V/cell and has remained in that state for a few months, a recharge should be avoided because of safety concerns. To prevent failure, never store the battery fully discharged. Apply some charge before storage, and then charge fully before use.
All personal computers (and some other electronic devices) contain a
Dell Inspiron 6000 battery for memory back up. This battery is commonly a small non-rechargeable lithium cell, which provides a small current when the device is turned off. The PC uses the battery to retain certain information when the power is off. These are the BIOS settings, current date and time, as well as resource assignment for Plug and Play systems. Storage does shorten the service life of the backup battery to a few years. Some say 1-2 years. By keeping the computer connected to the main, albeit turned off, a battery on the PC motherboards should be good for 5-7 years. A PC should give the advanced warning when dell u4873 battery gets low. A dead back-up battery will wipe out the volatile memory and erase certain settings. After battery is replaced, the PC should again be operational.
Longevity of high-power lithium-ion
Generally speaking, batteries live longer if treated in a gentle manner. High charge voltages, excessive charge rate and extreme load conditions will have a negative effect and shorten the battery life. This also applies to high current rate lithium-ion batteries.
Not only is it better to charge lithium-ion dell gd761 battery at a slower charge rate, high discharge rates also contribute the extra wear and tear. Figure 3 shows the cycle life as a function of charge and discharge rates. Observe the good laboratory performance if the battery is charged and discharged at 1C. (A 0.5C charge and discharge would further improve this rating.)
Figure 3: Longevity of lithium-ion as a function of charge and discharge rates. A moderate charge and discharge puts less stress on the battery, resulting in a longer cycle life.Battery experts agree that the life of lithium-ion depends on other factors than charge and discharge rates. Even though incremental improvements can be achieved with careful use of the battery, our environment and the services required are not always conducive to achieve optimal battery life. The longevity of a inspiron 1525 battery is often a direct result of the environmental stresses applied.
Simple Guidelines
1. Avoid frequent full discharges because this puts additional strain on the battery. Several partial discharges with frequent recharges are better for lithium-ion than one deep one. Recharging a partially charged lithium-ion does not cause harm because there is no memory. (In this respect, lithium-ion differs from nickel-based batteries.) Short battery life in a laptop is mainly cause by heat rather than charge / discharge patterns.
2. Batteries with fuel gauge (laptops) should be calibrated by applying a deliberate full discharge once every 30 charges. Running the pack down in the equipment does this. If ignored, the fuel gauge will become increasingly less accurate and in some cases cut off the device prematurely.
3. Keep the lithium-ion battery cool. Avoid a hot car. For prolonged storage, keep the battery at a 40% charge level.
4. Consider removing the Sony VGP-BPS9/B battery from a laptop when running on fixed power. (Some laptop manufacturers are concerned about dust and moisture accumulating inside the battery casing.)
5. Avoid purchasing spare lithium-ion batteries for later use. Observe manufacturing dates. Do not buy old stock, even if sold at clearance prices.
6. If you have a spare lithium-ion battery, use one to the fullest and keep the
other cool by placing it in the refrigerator. Do not freeze the battery. For best results, store the battery at 40% state-of-charge.
2010年11月25日星期四
How to Judge a Good Laptop Battery
In adjustment to aerate your laptop's acceptable portability, you charge to ensure you are application a top-quality battery. With so abounding laptop batteries on the market, it can be difficult to adjudicator which laptop batteries are best. Luckily, there are a few assertive array blueprint that you can accede to accomplish the action easier. If you focus on assertive laptop array qualities, you can get the best array for your needs.
http://www.archinect.com/members/profile_view_update.php?id=18019337884cee1c00ee829
1
Look for lithium-ion batteries. When judging the differences between each battery, keep in mind that Hp lithium-ion batteries have a longer shelf life and they are capable of holding a greater charge. Older nickel-based batteries may claim to hold a charge for several hours. However, over the lifespan of the nickel battery, this maximum charge potential will degrade rapidly, leaving you with limited charge potential after just a few months of use. Hp compaq 411462-421 Lithium-ion batteries degrade only slightly over time.
2
Make sure the laptop battery is compatible with your individual computer. This may seem like an obvious step, but many laptop batteries claim to "fit most" brands and consumers mistakenly assume their laptop will be included in that grouping of compatible brands. Any good laptop battery will include a list of compatible computers. Make sure both the make and model match your individual unit.
http://www.proprofs.com/webschool/user.php?login=goshop
3
Compare warranties. When judging competing laptop batteries, the battery's warranty options can help you make a final decision. If a company does not back up its product with a performance guarantee, then you may want to consider a brand that does. Laptop batteries can cost upward of $100, so having a good warranty will help you avoid paying extra money later if the battery fails.
4
Decide whether or not you need a "smart" battery. As explained by Battery University, a smart battery is able to communicate the battery's charge and overall condition directly to your computer. Smart batteries typically cost a little more than standard batteries, but they are ideal for most laptop users. Without a smart battery, there is no way for you to accurately know how much charge is left in your laptop battery.
http://www.cssdrive.com/index.php/S=da85ae1f318d6a1d47bbe6aa9f7680b4c9a7100a/member/96907/
http://www.archinect.com/members/profile_view_update.php?id=18019337884cee1c00ee829
1
Look for lithium-ion batteries. When judging the differences between each battery, keep in mind that Hp lithium-ion batteries have a longer shelf life and they are capable of holding a greater charge. Older nickel-based batteries may claim to hold a charge for several hours. However, over the lifespan of the nickel battery, this maximum charge potential will degrade rapidly, leaving you with limited charge potential after just a few months of use. Hp compaq 411462-421 Lithium-ion batteries degrade only slightly over time.
2
Make sure the laptop battery is compatible with your individual computer. This may seem like an obvious step, but many laptop batteries claim to "fit most" brands and consumers mistakenly assume their laptop will be included in that grouping of compatible brands. Any good laptop battery will include a list of compatible computers. Make sure both the make and model match your individual unit.
http://www.proprofs.com/webschool/user.php?login=goshop
3
Compare warranties. When judging competing laptop batteries, the battery's warranty options can help you make a final decision. If a company does not back up its product with a performance guarantee, then you may want to consider a brand that does. Laptop batteries can cost upward of $100, so having a good warranty will help you avoid paying extra money later if the battery fails.
4
Decide whether or not you need a "smart" battery. As explained by Battery University, a smart battery is able to communicate the battery's charge and overall condition directly to your computer. Smart batteries typically cost a little more than standard batteries, but they are ideal for most laptop users. Without a smart battery, there is no way for you to accurately know how much charge is left in your laptop battery.
http://www.cssdrive.com/index.php/S=da85ae1f318d6a1d47bbe6aa9f7680b4c9a7100a/member/96907/
2010年11月24日星期三
Acer Laptop Battery care and use instructions
1. Your new acer laptop battery comes in a discharged condition and must be charged before use. Upon initial use (or after prolonged storage period) the laptop battery for acer may require two to three charge/discharge cycles before achieving maximum capacity.
2. When charging the acer laptop battery for the first time your charging device may indicate that charging is complete after just 10 or 15 minutes. This is a normal phenomenon with rechargeable batteries. Simply remove the laptop battery for acer from the charging device and repeat the charging procedure.
3. It is important to condition (fully discharge and then fully charge) the acer
3ur18650f-2-qc134 laptop battery every two to three weeks. Failure to do so may significantly shorten the battery's life (this does not apply to Li-Ion batteries, which do not require conditioning). To discharge, simply run your device under the battery's power until it shuts down or until you get a low battery warning. Then recharge the laptop battery for acer as instructed in your user's manual.
http://www.campusbug.com/view/viewuser.php?id=81114
4. If the acer laptop battery will not be in use for a month or longer, it is recommended that it be removed from the device and stored in a cool, dry, clean place.
5. It is normal for a acer laptop battery to become warm during charging and discharging.
6. A charged acer laptop battery will eventually lose its charge if unused. It may therefore be necessary to recharge the laptop battery for acer after a storage period.
http://social.eyeforpharma.com/users/monkey
2. When charging the acer laptop battery for the first time your charging device may indicate that charging is complete after just 10 or 15 minutes. This is a normal phenomenon with rechargeable batteries. Simply remove the laptop battery for acer from the charging device and repeat the charging procedure.
3. It is important to condition (fully discharge and then fully charge) the acer
3ur18650f-2-qc134 laptop battery every two to three weeks. Failure to do so may significantly shorten the battery's life (this does not apply to Li-Ion batteries, which do not require conditioning). To discharge, simply run your device under the battery's power until it shuts down or until you get a low battery warning. Then recharge the laptop battery for acer as instructed in your user's manual.
http://www.campusbug.com/view/viewuser.php?id=81114
4. If the acer laptop battery will not be in use for a month or longer, it is recommended that it be removed from the device and stored in a cool, dry, clean place.
5. It is normal for a acer laptop battery to become warm during charging and discharging.
6. A charged acer laptop battery will eventually lose its charge if unused. It may therefore be necessary to recharge the laptop battery for acer after a storage period.
http://social.eyeforpharma.com/users/monkey
Blog information
Blog about go-shop.ca:
http://goshop.braveblog.com/
http://goshop.viviti.com/
Go-shop.ca Offer high quality and low price Laptop Batteries, Laptop AC Adapters, Digital Camera Batteries, Camcorder Batteries, Power Tools Batteries, Mobile Phone Batteies, Smart Phone Batteries, MID BAtteries, Battery Chargers, etc. Our products are brand new with 1 year warranty!
http://goshop.braveblog.com/
http://goshop.viviti.com/
Go-shop.ca Offer high quality and low price Laptop Batteries, Laptop AC Adapters, Digital Camera Batteries, Camcorder Batteries, Power Tools Batteries, Mobile Phone Batteies, Smart Phone Batteries, MID BAtteries, Battery Chargers, etc. Our products are brand new with 1 year warranty!
2010年11月17日星期三
How to Extend The Life of Your Laptop Battery
We all should treasure our laptop computer. It is such a useful tool that you can carry to anywhere. The battery is main source that power your laptop. We should learn a tip or two to safeguard the battery for its maximum lifetime. It is all depend on you, and how much you care for it.
1. According to statistics, a typical laptop battery lastd long for 500 charges / discharges cycles. If you want to your laptop battery last longer than this number, remove the battery whenever your laptop is plugged into an outlet. If you leave it in, the AC power could cause the battery to overheat and overcharge.
2. When you running on hp laptop battery power, use your machine until you get a low - battery warning, then let your battery recharge fully. In this way, you can maximize the number of recharges.
3. Also, keep in mind that keep your laptop and battery in cool, dry, and well - ventilated locations. Hot environment might minimize the battery lifetime.
4. Do not run your laptop on "Standby" mode when you not using the laptop .
Because "Standby" mode slowly consumes the power while your laptop is "off". Instead, using "Hibernate" mode. "Hibernate" mode preserves the laptop's current state by writing it to the hard drive as a file, which requires no power. When you restart the system, "Hibernate" loads the file, returning you to where you left off. compaq laptop batteries
2010年11月15日星期一
Toshiba A70 Power Adapter Requirements
The Toshiba A70 laptop series includes nine models. Each model has similar power requirements, but if you need a replacement adapter for your laptop, you may want to check the specific requirements for your model. Do this by closing the display and turning the laptop over. Look for the voltage and amperage requirements on a sticker on the laptop's underside, usually near the serial number. The requirements will be noted in direct current (DC) volts (V) and amps (A). toshiba pa3468e-1ac3
Input
Power adapters take alternating current (AC) from your wall outlet and transform it into a smaller output of DC for your computer. The connection from your wall to the adapter portion of the cord pulls the power into your adapter. For all American laptop models, this will be a 120-volt, two-prong AC plug, which is the standard for household power in the United States. The power input will likely be rated at a maximum of 15 amps, which is also the household standard. Input frequency should be 50 to 60 hertz (Hz) and 120 watts. toshiba satellite a105-s101
Output
The amount of power the adapter outputs to your computer will be different from the input voltage and amperage, which is why the adapter is required. Most A70 models require a 19 volt, 6.3 amp output from the adapter. If you select a universal adapter rather than a Toshiba brand adapter made specifically for your A70 satellite computer, make sure the amperage is not more than 6.3 or your model's specifications. A slightly lower amperage will not harm your computer, but a higher amperage output can damage your computer and its components.
Connection
Toshiba-brand adapters made specifically for the A70 series will have connectors that fit the AC adapter slot on your Satellite computer. If you are purchasing a different brand of adapter, such as a universal adapter made to fit within the power specifications of most laptops, check to make sure the connector will fit your AC power slot. Toshiba A70 laptops use a hollow, rounded connector pin that may be a different diameter than other brands. Check the packaging on universal adapters to make sure the Toshiba A70 series is listed as a compatible computer.
Input
Power adapters take alternating current (AC) from your wall outlet and transform it into a smaller output of DC for your computer. The connection from your wall to the adapter portion of the cord pulls the power into your adapter. For all American laptop models, this will be a 120-volt, two-prong AC plug, which is the standard for household power in the United States. The power input will likely be rated at a maximum of 15 amps, which is also the household standard. Input frequency should be 50 to 60 hertz (Hz) and 120 watts. toshiba satellite a105-s101
Output
The amount of power the adapter outputs to your computer will be different from the input voltage and amperage, which is why the adapter is required. Most A70 models require a 19 volt, 6.3 amp output from the adapter. If you select a universal adapter rather than a Toshiba brand adapter made specifically for your A70 satellite computer, make sure the amperage is not more than 6.3 or your model's specifications. A slightly lower amperage will not harm your computer, but a higher amperage output can damage your computer and its components.
Connection
Toshiba-brand adapters made specifically for the A70 series will have connectors that fit the AC adapter slot on your Satellite computer. If you are purchasing a different brand of adapter, such as a universal adapter made to fit within the power specifications of most laptops, check to make sure the connector will fit your AC power slot. Toshiba A70 laptops use a hollow, rounded connector pin that may be a different diameter than other brands. Check the packaging on universal adapters to make sure the Toshiba A70 series is listed as a compatible computer.
2010年11月11日星期四
Learn To How to Open a Up Laptop AC Adapter
Though not recommended by any laptop distributor, there are affairs area the laptop AC adapter may charge to be opened. This is a aerial action because the AC ability adapter is not advised to be opened. The AC ability adapter is anchored shut application a appropriate blazon of artificial welder. It is important to be accurate and accessible the ability adapter in a way that does not able or accident the alfresco casing, because this will accomplish the ability adapter unusable.
1. Attempt to simply pull the casing of the toshiba laptop ac adapter apart. (If the adapter is old, it may have been worn enough for this to be effective.) Try a putty knife to get the casing apart by sliding the edge of the knife into the crevice of the top and bottom casing shells and prying the knife up gently.
2. Tighten the hand-held vice grip little by little on the upper casing just above the crease separating it from the bottom until a very firm seal is made. Be careful not to crack the casing. Tighten until the shape of the plastic casing is slightly askew. Listen closely to the casing because this may cause the welding to bend and/or break slightly. Repeat the putty knife process if such a break can be made.
3. Set up a blow drier on it's highest heat setting and point it at one point of the casing. Let it heat for up to an hour, and repeat Step 2. Try the blow dryer at several different points on the casing, because the high heat may cause the welding to become loose or malleable.
Replacement Laptop Ac Adapter for toshiba pa3516e-1ac3:
High quality and cheap laptop ac adapter for toshiba, we guarantee that all products are brand new with one year warranty and 100% compatible!
1. Attempt to simply pull the casing of the toshiba laptop ac adapter apart. (If the adapter is old, it may have been worn enough for this to be effective.) Try a putty knife to get the casing apart by sliding the edge of the knife into the crevice of the top and bottom casing shells and prying the knife up gently.
2. Tighten the hand-held vice grip little by little on the upper casing just above the crease separating it from the bottom until a very firm seal is made. Be careful not to crack the casing. Tighten until the shape of the plastic casing is slightly askew. Listen closely to the casing because this may cause the welding to bend and/or break slightly. Repeat the putty knife process if such a break can be made.
3. Set up a blow drier on it's highest heat setting and point it at one point of the casing. Let it heat for up to an hour, and repeat Step 2. Try the blow dryer at several different points on the casing, because the high heat may cause the welding to become loose or malleable.
Replacement Laptop Ac Adapter for toshiba pa3516e-1ac3:
High quality and cheap laptop ac adapter for toshiba, we guarantee that all products are brand new with one year warranty and 100% compatible!
- Products ID : ANB002U
- weight : 575g
- Input: 100-240V
- Input Frequency: 50 ~ 60Hz
- Output Voltage: 20V
- Output Current: 4.74A
- Operating Environment:
In Use: 0°C ~ +40°C - Storage: -40° C ~ +85° C
- Relative Humidity: 5% ~ 95%RH (non-condensing)
- Safety Approvals: UL, CUL, TUV, CE, CCC, GOST-R, B Mark, NOM, NEMKO, PSB, S-Mark, S+Mark, RCM
- New, 1 Year Warranty!
Reg Price: CAD $ 46.90- Sale Price: CAD $ 32.83
2010年11月9日星期二
Rechargeable Batteries
What's the most important thing you should do before recharging your battery, or even plugging in your charger? As basic as it sounds, reading your manufacturer instructions is the smartest thing to do. The second smartest thing to do is contact the manufacturer if you have any additional questions. Why? If you do you'll learn exactly how to care for your rechargeable laptop battery and its charger. This will add runtime to your battery and you'll get more "bang" for your buck.
So, you've read your manual, right? Good. Want to learn more? That means you're in the right place. Keep reading this article to learn strategies for recharging and storing most standard rechargeable batteries. We'll discuss NiMH, NiCd, and Lithium-ion battery strategies in more detail. Plus, you will get a solid understanding of "deep-cycling" rechargeable batteries.
Q: How often should batteries be recharged? What is the best way to store them?
NiMH
- Recharge this digital camera battery at any time. It doesn't matter what level of energy capacity the battery holds.
- NiMH batteries can be fully discharged and recharged. A full discharge is also known as "conditioning". We'll cover "conditioning" later in the article.
- Didn't you just say fully discharge? Now, fully recharge? Yes, do a full recharge to the battery before storage.
- Recharge accordingly. If you don't use your rechargeable battery for a prolonged amount of time you'll need to recharge it. Recharge standard NiMH batteries every 1-2 months and pre-charged NiMHs every 6-9 months.
NiCd
- Completely drain the battery before a recharge during normal use periods.
- You'll reduce your battery's performance if you recharge it before it's fully exhausted of its energy. What happens if you don't? You could experience the "memory effect". The battery "remembers" to only store the amount of energy it expended during the most recent discharge.
- Fully drain a NiCd battery if you plan on storing it for a long time.
Lithium-ion
- Recharge these batteries anytime and often. There is no "memory effect". Charge lithium-ion batteries no matter how little energy was used.
- Avoid fully exhausting the battery's energy before recharging. This is a recommended practice for this battery type. Avoid recharging after medium [50%] or full [90-100%] discharges.
- Li-ion mobile phone batteries cannot be overcharged. If you plug in your device for a long period of time to an electrical current it will not overcharge. How cool is that?! If the battery is full no recharging current applies to the battery. For example, a laptop battery must drop to a certain level before the recharge begins.
- If you charge your battery after shallow discharges [approximately 30% of capacity] you'll get more charging cycles. Most batteries have an energy level gauge or indictor you can use to determine capacity. However, it's tough for most consumers to truly know their battery's precise capacity levels. Sometimes you will have to estimate.
- There are two opinions about long-term storage. Some experts say to store Li-ion batteries at full capacity, other experts state that users should drain the rechargeable battery to roughly 40-50% of its peak capacity.
All experts agree on one thing: store your battery in a cool location. A suggested temperature is 60-70 degrees Fahrenheit.
Q: Is "conditioning" needed for all rechargeable batteries?
Earlier in the article we mentioned "conditioning" a battery. Conditioning is "deep cycling" a battery. The user [that's you] drains the battery of most of its capacity before a full recharge.
Some of the newer battery chargers include a conditioning "cycle" that can be done at the touch of a button! Conditioning is beneficial for frequently recharged batteries used for short periods of time. For example, a flashlight turned on and off during a camping trip.
NiMHs
- Standard NiMHs. Condition your batteries after about 10 normal recharging sessions or every three months. The three month estimate is important. If you haven't used your battery for a long time, or if it's lacking the runtime it did before default to the three month rule. Remember, conditioning prevents crystal formation within the batteries cells. Crystals will reduce the battery's life.
- Pre-Charged NiMHs. Use the same rules as for standard NiMHs.
NiCds
- Every recharge session should be a conditioning session.
Lithium-Ion
- Not needed. As mentioned earlier in the article conditioning is not necessary for Li-ion rechargeable batteries.
- Capacity Gauge. If you have a battery pack with a capacity gauge it may be a good idea to fully discharge and recharge your battery. Why? This allows the capacity gauge to stay accurate by relearning its full capacity levels.
How to Rebuild Cordless Power Tool Batteries
The batteries on cordless power tools are usually the first part to fail. If you've ever priced a replacement makita 1434 battery pack, you'll know that it is probably not a cost-effective purchase. Most people would rather buy a new tool than spend over half the price of a new tool on a replacement battery pack. The best option might be to rebuild the batteries, but only if you have some experience using a soldering iron.
1. Remove the battery pack from your cordless tool. Unscrew the screws holding the battery case together. Open the battery case. Remove the battery cells--they will all be wired together as a unit.
2. Draw a rough diagram of the Makita 4334dwd battery cells on paper, noting the negative (-) and positive (+) terminals of each battery cell, and how each terminal is connected with wires.
3. Remove the connecting wires by holding them with pliers while melting the solder that holds the wire to the battery terminals, using a soldering iron.
4. Align the new dewalt de9057 battery cells correctly, according to your diagram. Solder all the connecting wires to the new battery cell terminals, according to your diagram. Work quickly so as not to overheat the batteries.
5. Slide the battery cells into one half of the battery case. Replace the other half of the cover. Fasten the screws that hold the case together, using a screwdriver. Charge the battery pack overnight before using it with your cordless power tool.
Replacement Power Tool Battery for milwaukee 48-11-2230
High quality and cheap power tool battery for milwaukee, we guarantee that all products are brand new with one year warranty and 100% compatible!
Products ID : TME008
Battery Type : Ni-Cd
Volt : 18V
Capacity : 2000mAh
Color : Black
weight : 1185g
Dimension : 136.30x83.10x69.50mm
New, 1 Year Warranty!
Reg Price: CAD $ 66.90
Sale Price: CAD $ 46.83
1. Remove the battery pack from your cordless tool. Unscrew the screws holding the battery case together. Open the battery case. Remove the battery cells--they will all be wired together as a unit.
2. Draw a rough diagram of the Makita 4334dwd battery cells on paper, noting the negative (-) and positive (+) terminals of each battery cell, and how each terminal is connected with wires.
3. Remove the connecting wires by holding them with pliers while melting the solder that holds the wire to the battery terminals, using a soldering iron.
4. Align the new dewalt de9057 battery cells correctly, according to your diagram. Solder all the connecting wires to the new battery cell terminals, according to your diagram. Work quickly so as not to overheat the batteries.
5. Slide the battery cells into one half of the battery case. Replace the other half of the cover. Fasten the screws that hold the case together, using a screwdriver. Charge the battery pack overnight before using it with your cordless power tool.
Replacement Power Tool Battery for milwaukee 48-11-2230
High quality and cheap power tool battery for milwaukee, we guarantee that all products are brand new with one year warranty and 100% compatible!
Products ID : TME008
Battery Type : Ni-Cd
Volt : 18V
Capacity : 2000mAh
Color : Black
weight : 1185g
Dimension : 136.30x83.10x69.50mm
New, 1 Year Warranty!
Reg Price: CAD $ 66.90
Sale Price: CAD $ 46.83
2010年11月3日星期三
Learn How to extend our iPhone's battery life
BATTERIES are the Achilles' heel of adaptable communicators. I don't affliction which buzz you accept (but if it is not an iPhone, you haven't yet accustomed in the 21st century), the battery never has abundant activity to do all you require.
One antidote is to use an accent array pack. There are lots of them about, some bigger than others. I had one of those little aboveboard constituent jobs you use to recharge your iPhone if it flags. It amount $12 from an eBay agent in Hong Kong and it lasted several weeks afore it overheated and died.
I am happier with a accepted iPhone case with a congenital array called Mophie Juice Backpack Air. It amount $119 from Apple's online store. Though it is a little thicker than an boilerplate accepted case, the Mophie includes a rechargeable 1200-milliamp-hour lithium polymer array that doubles the accepted iPhone array capacity.
Advertisement: Story continues beneath Mophie claims this adds 4½ hours of allocution time, 27 hours of audio playback or nine hours of video play. You can about-face amid the phone battery or Mophie and accompany with iTunes, as able-bodied as allegation either or both via a accepted 30-pin atrium on Mophie's abject after accepting to abolish the iPhone. Mophie's array is drained first, acceptation that if it is beat you still accept a absolutely answerable iPhone.
But you don't allegation to plonk down dollars to advance array activity for your iPhone or iPod. A few simple ability administration methods can advice a lot.
For instance, you should analysis consistently via iTunes for software updates. There's a adventitious the engineers accept begin a way to economise on ability and every little bit helps.
If you don't allegation connected apprehension that an appliance has been adapted or don't allegation MobileMe to forward you an email the moment it receives it, you should about-face off Push notifications. Do this from the home screen: Settings > Notifications > Off. Similarly, you can back mail manually or at specific intervals. Go to Settings > Mail, Contacts, Calendars > Back New Abstracts and tap Manually. Or, to extend the back interval, tap Hourly from that screen. Doing that applies the aphorism to all applications that do not abutment Push services.
Other power-saving measures you can employ, a lot of of them accomplished through Settings, cover axis off Bluetooth if you are not application it and axis off wi-fi if it is not accessible or you are not application it. However, you should use wi-fi if it is accessible to abstain adaptable buzz arrangement accuse and save power. Apple says wi-fi uses beneath ability than mobile.
If you are application your iPhone to accept to its iPod music library and don't ambition to accept calls, about-face on Airplane approach in the Settings screen. Music playback uses a lot beneath ability than if the buzz is consistently hunting for a arrangement connection.
And, conceivably the best ability saver of them all: about-face off 3G if you don't allegation it. On 3G you download abstracts abundant added bound but if all you allegation a lot of of the time is to accept buzz calls again use 2G EDGE or GPRS. If you are on the road, however, the EDGE and GPRS advantage will not bout that of a full-featured 3G network.
Apple aswell suggests you lock your iPhone if you are not application it. You will still be able to accept calls and SMS but the awning won't ablaze up if you blow it. Another Apple advancement is to put the iPhone through a complete allegation aeon at atomic already a month. That is, absolution the array run appropriate out and again charging it absolutely rather than topping up, as a lot of of us do every day.
Economy measures on iPods chase agnate lines: use the backlight alone if you allegation it, absolute fast-forwarding through the music library, about-face off the equaliser and use the Hold about-face if you're not alert — it will anticipate accidentally lighting up the screen.
Heat is the adversary of array lifespan. Be accurate not to leave your buzz or iPod in the sun, beside a boiler or in a car anchored in the sun.
http://www.go-shop.ca have many high qulity mobile phone batteries, Smart phone batteries, laptop batteries, Digital camera batteries, Camcorder batteries.
One antidote is to use an accent array pack. There are lots of them about, some bigger than others. I had one of those little aboveboard constituent jobs you use to recharge your iPhone if it flags. It amount $12 from an eBay agent in Hong Kong and it lasted several weeks afore it overheated and died.
I am happier with a accepted iPhone case with a congenital array called Mophie Juice Backpack Air. It amount $119 from Apple's online store. Though it is a little thicker than an boilerplate accepted case, the Mophie includes a rechargeable 1200-milliamp-hour lithium polymer array that doubles the accepted iPhone array capacity.
Advertisement: Story continues beneath Mophie claims this adds 4½ hours of allocution time, 27 hours of audio playback or nine hours of video play. You can about-face amid the phone battery or Mophie and accompany with iTunes, as able-bodied as allegation either or both via a accepted 30-pin atrium on Mophie's abject after accepting to abolish the iPhone. Mophie's array is drained first, acceptation that if it is beat you still accept a absolutely answerable iPhone.
But you don't allegation to plonk down dollars to advance array activity for your iPhone or iPod. A few simple ability administration methods can advice a lot.
For instance, you should analysis consistently via iTunes for software updates. There's a adventitious the engineers accept begin a way to economise on ability and every little bit helps.
If you don't allegation connected apprehension that an appliance has been adapted or don't allegation MobileMe to forward you an email the moment it receives it, you should about-face off Push notifications. Do this from the home screen: Settings > Notifications > Off. Similarly, you can back mail manually or at specific intervals. Go to Settings > Mail, Contacts, Calendars > Back New Abstracts and tap Manually. Or, to extend the back interval, tap Hourly from that screen. Doing that applies the aphorism to all applications that do not abutment Push services.
Other power-saving measures you can employ, a lot of of them accomplished through Settings, cover axis off Bluetooth if you are not application it and axis off wi-fi if it is not accessible or you are not application it. However, you should use wi-fi if it is accessible to abstain adaptable buzz arrangement accuse and save power. Apple says wi-fi uses beneath ability than mobile.
If you are application your iPhone to accept to its iPod music library and don't ambition to accept calls, about-face on Airplane approach in the Settings screen. Music playback uses a lot beneath ability than if the buzz is consistently hunting for a arrangement connection.
And, conceivably the best ability saver of them all: about-face off 3G if you don't allegation it. On 3G you download abstracts abundant added bound but if all you allegation a lot of of the time is to accept buzz calls again use 2G EDGE or GPRS. If you are on the road, however, the EDGE and GPRS advantage will not bout that of a full-featured 3G network.
Apple aswell suggests you lock your iPhone if you are not application it. You will still be able to accept calls and SMS but the awning won't ablaze up if you blow it. Another Apple advancement is to put the iPhone through a complete allegation aeon at atomic already a month. That is, absolution the array run appropriate out and again charging it absolutely rather than topping up, as a lot of of us do every day.
Economy measures on iPods chase agnate lines: use the backlight alone if you allegation it, absolute fast-forwarding through the music library, about-face off the equaliser and use the Hold about-face if you're not alert — it will anticipate accidentally lighting up the screen.
Heat is the adversary of array lifespan. Be accurate not to leave your buzz or iPod in the sun, beside a boiler or in a car anchored in the sun.
http://www.go-shop.ca have many high qulity mobile phone batteries, Smart phone batteries, laptop batteries, Digital camera batteries, Camcorder batteries.
订阅：
博文 (Atom)