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Iphone 12 pro Battery drain overnight 90% to 50%

My iphone 12 pro is just 1 month old and I am facing really bad battery drain overnight. I had almost 90% left before going to sleep and woke up with a remaining battery of around 55% or 50%. moreover my mail push is set to manual and I had turned off wifi, bluetooth, location and mobile data my5G had also turned off is there something I can do to fix this?

Posted on Nov 24, 2020 9:46 PM

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11 replies

Dec 6, 2020 8:25 PM in response to ericfromsheffield

Mate two days i am continue analyzing my iphone 12 pro and what i have found out 5G is consuming the battery if your mobile is not an airplane the battery will keep on draining i put my cell phone on airplane mode for two days and i havent seen any 1 percent battery drain issue while on the other side i am facing approx 20 to 30% battery drain even i turned off everything wifi mobile data Bluetooth background app refresh

Nov 25, 2020 12:47 AM in response to zubair200

Looking at the flat usage curve the afternoon before, there is no internal battery leakage.

There can be invisible (non-app) processes, particularly photo processing that will use battery overnight.

iPhones are designed to be charged overnight using optimised charging and I recommend you leave it on charge while you sleep and let it work out your daily routine.

Dec 6, 2020 2:13 PM in response to LD150

just to add , I work in a place where phones can’t be taken into the facility leaving you to place them in your locker or in your vehicle for up to 12hrs a day. The phone would be 100% charged going into work as it’s hardwired to the apple CarPlay head unit in the car. The apps would be all closed down and then the phone placed on silent and popped in the locker for the duration. On returning after a 8/10/12 hour shift the phone would be between 70-80% charged then , the iPhone 11 Pro Max the 12 replaced would have been at 98% battery after a 12 hour shift.


the 12’s battery would drop 1% every 2-3 mins while doing little to no use while using such as checking emails , replying to texts etc... after answering voicemails left by folk a 3 minute call would cost you about 15% of your battery life and a VERY VERY warm and hand.

Iphone 12 pro Battery drain overnight 90% to 50%

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