View Single Post
Old 12-16-2012, 05:14 PM  
MrMaxwell
Too lazy to set a custom title
 
Industry Role:
Join Date: Jul 2005
Posts: 10,057
Windows shutting down before your laptop battery is really dead

I don't think it's good for your battery to discharge it completely, but fuck it... windows was letting me use the battery for 10-20 minutes on a full charge, anyway... Now it works for two hours before the battery dies.. I had tried flashing the bios and calibrating it and all of that shit (which you should try first, of course)

http://www.sevenforums.com/general-d...battery-3.html


Windows 7
3 posts


How I fixed my "consider replacing your battery".

1) Adjust all setting in your power scheme to minimize actions when the battery is low. (turn off all sleep or hibernate commands and reduce all warnings to 0 or 1 minute).
2) Run the following command:
To change the 'Battery->Critical battery action->'On battery' setting to "Do nothing" using powercfg.exe
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.
3) Run your laptop until it dies...your pc will fully crash. Then fully recharge and run until it dies again.

This will recalibrate your battery. Because Windows 7 automatically shuts down your PC when it thinks the battery is low, it never recalibrates. You have to stop if from sleeping or hibernating all together to get the battery to recalibrate. I went from 66% battery wear to 0.0% overnight.
MrMaxwell is offline   Share thread on Digg Share thread on Twitter Share thread on Reddit Share thread on Facebook Reply With Quote