Do the following
- Turn of wifi, GPS, Bluetooth and also data traffic. In low reception areas data traffic has more effort to gain a signal so it will use the battery faster. Also reception and GPS in low reception areas generally uses more battery.
- Download a task killer application and kill all uneeded tasks, the tasks run when you minus them down in the background still using the battery up
- Reduce your Brightness to as low as you can ( Note: outside in bright sun the lowest is nearly impossible to see so you may have to turn it up)
- Reduce your standby time so the light on the screen goes out earlier because this uses more battery.
- Try to keep animations to a low so try turning this of in the settings with display
Also - if you charge your phone for a long duration it will fully charge, when the battery is fully charged it will stop charging and the battery will start depleating so if you take it of charge the battery may already be under full charge.
The battery should last longer if you follow these steps, hope i was able to help it helps greatly with mine and i can get 2-3 days usage out of my battery if i am very careful with it.
