My iPhone 7 battery draining fast suddenly. I don’t know why. Last night I saw the battery percentage. It was 98%. But today morning it was completely drained out. There was only 20% battery on my phone. I didn’t even touch the phone throughout the night. It happens only after upgrading my phone to iOS 11. Then one of my friend suggested me to try some solutions to fix this issue. If you have the same issue, this article will help you to fix it.
Solution 1: Turn off “Background App Refresh”
Turning on Background App Refresh may drain the battery level.
- Go to Settings->General->Background App Refresh.
- Tap “Background App Refresh”.
- Select “Off” from 3 options (Off, Wi-Fi, Wi-Fi & Mobile Data”.
Solution 2: Hard Reset/Force Restart
Press and hold the Home Button and Wake/Sleep (Power) Button simultaneously until the Apple Logo appears.
Solution 3: Check Battery consumption for Apps
- Launch Settings->battery.
- Under “BATTERY USAGE”, you can see the battery consumption for each app. Find which one (app) makes your battery draining so fast.
Solution 4: Turn on “Auto-Brightness”
Auto-Brightness automatically adjust the screen to lighting conditions.
- Launch Settings->General->accessibility->Display Accommodations.
- Toggle on (turn on) Auto-Brightness.
Solution 5: Reduce the Brightness
- Go to Control Center.
- Adjust the brightness level
Solution 6: Turn off “Low Power Mode”
Low Power Mode reduces power consumption. When it is on, Background App Refresh, mail fetch, Hey Siri, some visual effects, and automatic downloads are turned off or reduced.
- Go to Settings->Battery.
- Turn on “Low Power Mode”.
SEE ALSO: iPhone 7 stuck on black screen with white spinning wheel
Solution 7: Restore your phone in DFU/Recovery Mode
Before doing it, take a Backup. Because this action will erase all data on your phone.
- Connect your iPhone 7 via Lightning (USB) cable to the Mac or PC.
- Open iTunes on your PC or MAC. Make sure that iTunes is upgraded to latest version.
- Press and hold the Home Button. At the same time, press and hold the Wake/Sleep (Power) button at top right of the iPhone while holding the Home Button.
- Hold both buttons until the Apple logo appears.
- Don’t leave it after seeing Apple logo appears.
- Keep holding until the recovery mode screen appears. A box will open with three option. Choose “Restore”. Wait until the process is finished.
- Restart your device forcely (step 3 & 4) and then set up your phone.
- Replace the battery.
- Make sure that you have updated your phone.
- Reduce the Brightness level.
If you know any other solutions to fix this issue, let us know through your Commands.