Battery life decreased when using Peppermint

I think that i have bad battery with my laptop, but in windows 10 it long about 5 hours , in Peppermint 7 it take 2 hours !!

I don’t think you have a bad battery. It is well known that under Linux the battery are drained much quicker than under Windows. But the difference you’re mentioning are quit abnormal. There must be something else going on here.

Please have a look at this:

And check this site for TLP:
Scroll down till you see TLP 0.9 (same info here: