I recently upgraded to 13.10 from 12.10. It's now showing the battery info wrong and it keeps turning off even with 60% of power remaining, and without warning. When I resboot the PC, it works fine for 30 minutes or so and then the same thing over again.
I didn't had this problem with 12.10. Also, I have installed TLP, but that's not helping either.
The hardware:
- PC: HP 2000-2116tu
- CPU: Intel i5 (3rd generation)
- Graphics: Intel HD4000
make sure you haven't changed anything in power settings.