If you have battery issues then follow these steps.
1.Make sure to find out if any apps are draining your battery on standby mode. Uninstall them.
2. If you are working at a place where the network signal is weak..then that's an issue. Battery will keep on draining as the phone tries to search for good signal. You can turn on 3g only mode to save battery.
3. Unnecessary gestures and other effects should be turned off. Turn off adaptive battery and put unwanted apps to sleep.
4. After doing these things if you still have battery issues then wipe the cache by going to recovery mode. After rebooting , dial *#0228#...This will calibrate your battery level. Then drain your battery to zero and charge it to 100%. Charge 60 mins plus after reaching 100%.
