Iphone 7 Battery Draining Fast All Of A Sudden. Now lets check to see if a certain app is hogging your iPhone battery. How to Fix Apple Watch Series 765 Battery Drain So Fast Step 1.
Change the Low Power Mode toggle to ON. Go to Settings General Backgeound App Refresh and turn it off. 2 When the iPhone is restarted fill in your passcode and then do a normal restart holding down only the lock button.
Now as you have disconnected all the Bluetooth accessories watch your iPhone battery behavior.
3 Recharge your iPhone to 100 and your good to. That way apps wont be running in the background draining your battery when your not. This will be hard to do but it will work. Close Applications on the Background.
