2011年5月15日星期日

How to To fully discharge the HP laptop battery pack

Disabling Hibernation To fully discharge the battery pack, disable Hibernation temporarily.If you do not use your laptop for extended periods of time (a week or more), remove the Hp pavilion dv6 laptop  battery pack from the laptop.
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 Batteries column, so you can reset them after calibration.
1.Select the drop-down lists and set all 6 options in both columns to Never.
2.Select the OK button.
3.Disconnect the notebook from the external power source, but do not turn off the notebook.
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 Dell studio 1555 batteryHp pavilion dv5 battery pack is fully discharged, the power/Standby light turns off and the notebook shuts down.
5.Disconnect any peripherals, for example if you use a USB flash memory stick, copy any files you need and then unplug it. This can give an extra 20 minutes or so of use.
6.Do not connect PCMCIA cards (PC cards) unless you need to use them. Remove them when not needed.
7.Change the Control Panel - Alarm settings to their absolute minimum (e.g. four percent). This can gain an extra ten minutes of use (but the notebook may cut out suddenly if you have a degraded battery).
8.Do not access a CD more than required. If possible copy or install any software you might need from the CD onto the hard disk and then remove the CD.
Leaving a battery in a laptop while using an electrical outlet for long periods of time will keep the battery in a constant state of charging up and that will reduce the life cycle of the battery.
Did you know that detaching your main laptop batteries from your laptop would increase your laptop's battery life up to 75%? Our experience and testing have shown that even when you are plugged in with your laptop ac adapter and your battery is fully charged, the laptop will still use the laptop battery resources in small increments. This will put unnecessary charge cycles to your battery. Since typical li-ion laptop batteries have 375 charge cycles, having a fully charged battery inserted will put unnecessary charge cycles. The downside to removing your laptop battery maybe a loss of power when the ac adapter is accidentally unplugged or when there is a power outage.

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