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Battery Life Problems on Laptops with Windows 7 | Windows 7 News
Zitat:
A Work Around
It could help to avoid automatic switching off and keep the information about battery charge:
Setup Critical battery action to ‘Do Nothing’. Use the powercfg.exe tool. Essentially change the settings to “do nothing.” Here is how to do that:
* Activate the power scheme you want to modify.
* Open an elevated command console (windows key, type ‘cmd’ in start menu,
press “ctrl+shift+enter”, click ‘continue’)
* Execute “powercfg -setdcvalueindex
SCHEME_CURRENT SUB_BATTERY BATACTIONCRIT 0″
* Your current power scheme will show “Battery->Critical battery action->
On battery: Do nothing” despite the option being unavailable in the drop box.
Note that this workaround is not a solution. Your battery drainage will still occur, but the messages will not appear.
Another possible work around solution: Calibrate the Battery
Another way to address this issue is to pursue the following strategy: completely drain the laptop and attach the A/C adapter to replenish the battery system.
1. Fully Charged Up the Laptop Battery to 100 % , then unplugged power cable, and I let the battery drain. Upon reaching 99 % drainage you will start to get the message … consider replacing….
2. When the battery is fully drained, laptop goes into hibernate. Power it back on but then it shutdowns completely.
3. Checked Bios to confirm if there was any power was left; it had 2 % left.
4. Wait 15 minutes to completely drain the laptop of any battery power and confirm that it can not be powered on.
5. Remove the battery; then in this condition while the battery is out press the power button this will drain the system of any power left in the laptop.
6. At this stage the laptop should be fully drained now.
7. Plug in the A/C adapter cable to the laptop and wait 5 minutes. Power up the laptop.
8. Under this process while charging the laptop you should not get the error message.
This process should allow you to restore your battery to it’s optimum level.