Tips to save battery:
- Use flight mode if you do not need to use networks.
- Turn off phone’s back light.
- Turn off vibration, it takes more power.
- Disable unnecessary background processes. Exit the programs properly after using it.
- Limit your talk time.
- Use GSM/2G rather 3G. 3G eats up too much power than GSM/2G.
- Turn off WiFi, Bluetooth, infrared when you do not need it.