1. Turn Off Wi-Fi, Bluetooth, etc when not using
2. Turn Off Location Services
3. Close all apps
4. Every re-charge, wait for full re-charge.. (charging icon turns from a lightning icon to plug icon), never use in middle
5. Don't charge often, let the battery go down to < 20%
6. Don't charge for a long period, unplug after full charge (#4 above)
Hope that helps.