How can I increase my samsung galaxy fit's battery life? I'm using Samsung Galaxy Fit(S5670) and running official 2.3.6 version. My battery's capacity is 1350mAh. Can I increase this capacity to 1500mAh or 2000mAh?
Can I increase this capacity to 1500mAh or 2000mAh?


Did you mean increasing capacity from 1350mAh to 1500mAh on same battery??

It's not possible.

If your phone supports a battery with capacity 1500mAh or 2000mAh, you can buy a new battery with these increased capacity.

Check manufacturer's website for details of phone and batteries.