Some basic apps are memory-resident applications and may consume battery even when they are not in active operation.
(e.g. Navigation app)
You can save up the battery usage by turn off unused features.
Troubleshooting
• Delete the apps individually or all at once in recent apps before turning off the screen.
• Turning on Bluetooth, GPS and Wi-Fi functions only when you use them will reduce battery consumption.
• Routine automatic synchronization (e.g. Wi-Fi Zone/home/dawn) can consume battery if the auto-sync function is set On.
Routine automatic synchronization feature can be turned off by drag down the notification panel.
- Select Settings> Select 'General' tab> Battery & power saving> Turn on the Battery saver.