Satellite L635 freezes up when running on battery power

Hi,
I've bought a Toshiba satellite L635 yesterday, and whenever I try to work on it for more than 5 minutes, the entire computer freezes up nad remains stuck.
After I turn it off and on again and run in safe mode, it works just fine.
When the computer is plugged in to the AC power, it works fine too.
I've tried to recover the OS and settings, but it still freezes up after about 5 minutes of work.
I've also tried to kill all the unnecessary processes, but it still freezed up on me.
I will appreciate your help,
Eli.

Hi,, The problem is on Power menagement, the system tries to extend battery life by reducing performance, so go to: ControlPanel > Power Options > Change Plan settings from here click -Change Advanced power Settings- then in - Processor Power Management - increase % of - Minimum Processor State in both Battery and Plugged in modes. I increased them to 15% and its helped to forget this problem. Also dont forget to update your BIOS from toshiba support, version of 2.2 availible. Wish this will help you

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