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OPTIMIZE YOUR LAPTOP BATTERY



Most new Acer Laptop use Lithium-ion battery. Lithium-ion batteries are the newest technology batteries and offer several advantages over NiMH and NiCd batteries.

Lithium-ion batteries are preferred for their lighter weight and higher performance. Lithium-ion batteries are typically 20-35% lighter and will provide 10-20% better performance than a NiMH battery of equivalent mAh rating. Lithium-ion batteries are also unique in that they are not susceptible to the "memory effect".

A new Lithium-ion battery will benefit from an initial "conditioning" of the battery. For the first 3 charge cycles, fully charge the battery overnight and allow it to fully discharge before recharging. Once conditioned, Lithium-ion batteries will perform best when charged at a rate somewhere between a conventional slow charge and a rapid charge. When rapid charging, Lithium-ion batteries require a charger designed to charge Lithium batteries. To achieve a true full charge when rapid charging, the battery needs to be slow charged the last 10-15% of its charge cycle. Most "intelligent" desktop and Lithium-battery rapid chargers provide this capability. A Lithium-ion battery may be damaged by extensive overcharging (continuously on a charger for more than 24 hours). (laptop-battery.org)


Battery is a consumable electronic product with limited life, but correct use, proper charging and discharging as well as good storage would significantly prolong the laptop battery life.

Calibrating your computer’s battery for best performance
The battery has an internal microprocessor that provides an estimate of the amount of energy in the battery as it charges and discharges. The battery needs to be recalibrated from time to time to keep the onscreen battery time and percent display accurate. You should perform this procedure when you first use your battery and then every few months thereafter.


1. Make proper settings for “Power” option: click right key of your mouse in the blank screen, choose “Properties” – “Screen Saver” – “Power Schemes” – “Portable”, and “When computer is” “Running on batteries”, tick “Never” for all options. Under “Alarm” option, don’t tick “Low battery alarm” and “Critical battery alarm” functions, and then choose “Apply” and “OK” to save the settings.

2. Disconnect the power adaptor and use your battery until laptop shuts down.

3. Plug the power adaptor in and fully charge you computer’s battery to 100%. Upon initial use (or after prolonged storage period) the battery may require three to four charge/discharge cycles before achieving maximum performance. The charging process should last at least around 14 hours.
You have to first discharge your battery until laptop shuts down before you recharge it to 100% for calibration. After that, you can connect and disconnect the power adaptor when the battery is at any charge level.

Tip: when the battery reaches “empty”, the computer is forced into sleep mode. The battery actually keeps back a reserve beyond “empty”, to maintain the computer in sleep for a period of time. Once the battery is truly exhausted, the computer is force to shut down. At this point, any open files could be lost.

Battery Storage

Batteries may be damaged if stored for prolonged periods with a closed circuit. If the battery will not be used for a month or longer, it is recommended that it be removed from the device, 60% ~ 80% charged and stored in a cool, dry and clean place. A charged battery will eventually lose its charge and be damaged if unused. It may therefore be necessary to recharge the battery after a certain storage period. Surely it would be great if you can use the battery once a month to ensure good storage status.

Battery Safety

Do not short-circuit. A short – circuit may cause severe damage to the battery.
Do not drop, hit or otherwise abuse the battery as this may result in the exposure of the cell contents, which are corrosive.
Do not expose the battery to heat sources moisture or rain.
Keep battery away from fire or other sources of extreme heat.
Do not incinerate. Exposure of battery to the extreme heat may result in an explosion.
Don’t try to disassemble, repair or change the battery pack which would cause over-heating or fire. Corrosive alkaline solutions or other electrolyte leakage would lead to fire or personal injury and death.
Don’t puncture the battery by sharp materials.

Quick Q & A Session:

Q: How long will the new main battery power the laptop?
A: Battery run-time on a laptop is difficult to determine. Actual battery run time depends upon the power demands made by the equipment. The use of the screen, the hard drive and other accessories result in an additional drain upon the battery, effectively reducing its run times. The total run-time of the battery is also dependent upon the design of the equipment.

Q: Why is the battery capacity lowered while left unused?
A: Due to influences of ambient humidity and non-absolute insulation environment, batteries have a phenomenon of self – consumption. Dependant upon the quality, the charge would decline around 1% every 3 – 4 days, so it is quite normal if the charge is not lowered in a major way!

Q: Should I take off the battery when using AC adaptor?
A: Usually laptop charging function starts charging when charge is less than 95%, and because natural consumption phenomenon exists, it does not make difference whether to take it off or keep it remain in laptop. But we suggest you keep it inside the laptop, because it could keep the ongoing operations continue and prevent data loss if AC power is abruptly interrupted. If you want to take the battery off, you are suggested putting it in wet and cool place and remember to cycle the battery at least once a month to keep it active.

Q: Will battery life decrease if I charge it when it is not fully discharged?
A: Battery life is calculated by full charge – discharge cycles, Li-ion battery usually has 300 ~ 400 cycle life. You don’t have to worry about the battery being calculated one more cycle when you just charged a little bit, averagely once more life cycle is only accumulated when you charge it to 80 ~ 90%.

Q: Battery capacity still shows 0% even after 20 hours of charging, and the laptop immediately shuts down when AC adaptor is unplugged, what is the problem?
A: The first thing you need to do is check the contact between the laptop and battery, because if the contact is not good, even the communication data between them is read, the battery cannot be charged. Since the laptop battery slot may become disfigured after long period of use while the battery plastic casing is designed according to new laptop specification, it would cause contact problems. Under such circumstances, please take off the battery and put it inside the laptop for several times to ensure better contact. When you hear a sound CLICK, it basically means the contact is good. Try more times and the contact problem can be solved, especially for IBM laptops.

Q: The battery is not discharging and laptop immediately shuts down after unplugging AC adaptor when the battery is charged to certain percentage or even 100%, why?
A: When such case takes place, please pay attention to your ambient temperature. If you are in somewhere with very high temperature, the battery will automatically protect itself after long time using, and the laptop startup program would stop working. At this moment, please restart your laptop after 1 hour. Another possibility is some problems took place with your laptop during charging process, because laptop charging circuit easy to cause problems when taking charge. Please try your original battery on the laptop and see if it works.

Q: My Acer laptop could not recognize the battery and showed “the battery is not compatible with this computer model, please put in a Acer original battery”, and the indicator kept blinking, what’s wrong with it?
A: It shows the battery compatibility is not good. When it happens, please contact Laptop Accessories for refund.

Q: My laptop immediately shut down when I put in the battery, but it worked well when the battery was taken out, why?
A: It shows the battery is dead and you need to use a new battery, but it is rather rare!

Q: My battery always caused laptop to shut down without enough warnings that is would go to hibernation, it happened several times, and now it can only be used for several minutes after being fully charged, why?
A: When you face such problem, please refer to Calibrating Your Computer’s Battery For Best Performance for proper operations, if the problem still exists, please contact Laptop Accessories.

Q: When I charged the battery for the first time, it still showed 30% after hours of charging, why? How can I charge it to 100%?
A: When you face such problem, please refer to Calibrating Your Computer’s Battery For Best Performance for proper operations, if the problem still exists, please contact Laptop Accessories

Q: Why did the laptop show that the battery is fully charged after just 10 minutes of charging?
A: When you face such problem, please refer to Calibrating Your Computer’s Battery For Best Performance for proper operations, if the problem still exists, please contact Laptop Accessories.

Q: My battery lasted 3 hours for the first time, but it couldn’t take charge for the second time, is it faulty?
A: When you face such problem, please refer to Calibrating Your Computer’s Battery For Best Performance for proper operations, if the problem still exists, please contact Laptop Accessories.

Q: What's the continuous ability of laptop batteries ?
A: It indicates that the work time of batteries when recharging enough. In the same electronic equipment, the main factor is depending on the capacity of batteries. The more, the stronger. Capacity also is the third guideline of batteries, such as voltage, electricity and capacity. Also it will show by "mah". Of course, the more, the better.

Q: Do you need to activate batteries when using for the first time ?
A: No, you don't. Because it activate before sending out from the factory.

Q: How do you recharge ? Is it better to recharge when putting off automatically ?
A: It's good to prolong the laptop batteries span life when recharging the battery put off automatically. We suggest you not to care whether the battery will stop when using.

Q: Are the for one or two times while recharging once again due to having no electricity?
A: Two times.

Q: How do you take good care of your battery ?
A: Avoid recharging batteries continuously. It's good to recharge when it's below 10 percent. In fact, it will damage and recharge batteries when using up. Try your best not to recharge when it's beyond 60 percent. If you don't use the battery, please keep in the dry area.

Q: How do you keep the battery you don't use for a long time ?
A: Please keep the electricity for 40 percent and put it in a dry place from 15 to 25 degree. As it will be weaken when the temperature is too high or too low.

From Acer Guide :

Your computer supports charge-in-use, enabling you to recharge the battery while you continue to operate the computer. However, recharging with the computer turned off results in asignificantly faster charge time.
Maximizing the battery's lifeLike all other batteries, your computer's battery will degrade overtime. This means that the battery's performance will diminish withtime and use. To maximize your battery's life, you are advised toadhere to the recommendations set out below.

Conditioning a new battery pack
Before you use a battery pack for the first time, there is a"conditioning" process that you should follow:


1. Insert the new battery without turning the computer on.

2. Connect the AC adapter and fully charge the battery.

3. Disconnect the AC adapter.

4. Turn on the computer and operate using battery power.

5. Fully deplete the battery until the battery-low warning appears.

6. Reconnect the AC adapter and fully charge the battery again.


Follow these steps again until the battery has been charged anddischarged three times.Use this conditioning process for all new batteries, or if a battery hasn'tbeen used for a long time. If the computer is to be stored for morethan two weeks, you are advised to remove the battery pack from theunit.


Warning: Do not expose battery packs to temperatures below 0°C(32°F) or above 45°C (113° F). Extreme temperatures may adverselyaffect the battery pack.


By following the battery conditioning process you condition your battery to accept the maximum possible charge. Failure to follow this procedure will prevent you from obtaining the maximum battery charge, and will also shorten the effective lifespan of the battery.In addition, the useful lifespan of the battery is adversely affected by the following usage patterns:


* Using the computer on constant AC power with the batteryinserted. If you want to use constant AC power, you are advised toremove the battery pack after it is fully charged.

* Not discharging and recharging the battery to its extremes, as described above.

* Frequent use; the more you use the battery, the faster it will reach the end of its effective life. A standard computer battery has a lifespan of about 300 charges.

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