I notice my battery is getting empty quickly while using Ubuntu 11.10. When I am using Windows 7 with the same power settings and usage, I get a back up of around 3 hours whereas in Ubuntu it is half. Can you please advise how to increase battery life?
Ubuntu – Reduced battery life in the netbook
batterypower-management
Best Answer
Try the jupiter power management applet. I'm getting ~4 hours.
http://www.webupd8.org/2011/09/jupiter-applet-finally-available-for.html
It says you need to use a hack or something in the instructions, but I just added the ppa, updated, installed, and restarted unity or logged out and in again (I cant remember which), and I'm pretty sure it just worked.
If not, you may have to whitelist it, but it should do that on its own I believe.