ICS Battery Issue (can't find old threads)

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So I know there were people with battery issues when the first leaked official Samsung ics Roms came out, but I can't find the posts....

My tab is fully charged. But shuts itself off with 'low battery' after 20 minutes of use. How can I retrain the Samsung ROM to not do this? It's driving me crazy.

Thanks!

Sent from my HTC One X using xda premium

Here's the thread you need:

http://forum.xda-developers.com/show....php?t=1861229