I'm using both windows 7 and ubuntu-13.04 in my acer aspire 5738g notebook.
I get 3 hrs battery backup in windows 7.
But in ubuntu it shows only 1.30 hours but as it goes on to ( it shows 1.30 but within 10 min it shows 1hr ) 0.59 hours suddenly it goes off.
Even though battery is fully charged and if I unplug the chord that time, the system will also go off.
It takes hardly 1 hour to get charge (in Win7), but in ubuntu it takes around 3 hours and the level will be fluctuating.
Also,the system heats up for short time use. So please tell me how to come out from this 2 bugs.
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