iPhone 12 battery draining fast

My new Iphone 12 pro drains from 80% - 45% when it's on standby while i'm asleep. I observed once there is NO sim card in the device, the battery lasts the entire night into morning with no drop in percentage at all. I'm super close to returning this device because I clearly didn't pay all this money for an Ipod touch on steroids.....but I read that IOS 14.4 would most likely fix this issue, but, by the time this is released, my return period would be over :/ hence I might just send back in the device and wait till apple fixes this issue.

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Wow it is amazing!! I should be very happy in comparison, even if my use at office is much lower.

Indeed, when working I use it very lightly, only answering some texts. So less than 5 minutes of screen time per hour costs me 3%.

I am less and less sur that it can be fix by software update, I mean for those of us who don't have amazing slope as we can see above.

Apple has reduced the capacity of their batteries, relying on the 5nm engraved CPU but seems to have completely forget piece of sh*t of modem... So with a smaller battery, it cannot make miracles.

On my side, endurance for endurance is not the biggest deal. Indeed, I was used to plug it every night before this, and it was the case with my 11 Pro Max. I have stopped only to investigate this situation.

But the biggest deal for me is to pay 1400€ for a phone which will not last an entire day with a heavy use like in holidays. I mean when you take pictures, videos, make phone calls, use apps, fly a drone and use the GPS ... all this without plugging it to the wall or to a car.

I was able to do this without any doubt with my 11 Pro Max and I had never ended a day like describe before with less than 20%. But I am really not sure that the 12 Pro Max is able to do the same :( And of course, I don't want to have to switch off the 3/4 of the phone's features to do it!

I'm not sure if you are completely right about the modem. Despite me having 10-12 percent overnight drain (managed to get 6 percent right now) my colleague has the same 12 Pro with DEFAULT settings, and his drain is only 0-1 percent over night. He is using LTE and not 5G.

Your colleague falls in that lucky percentage to have a working iPhone 12 pro. This entire thread, parts of Reddit, and alot of other places, are filled with the standby drain issue. So he should count his lucky stars.

I already got my first 12 pro replaced and the new has the same issue. So do you think I am just unlucky or it‘s more like a software issue?

Strange enough, when I was at my girlfriend‘s place the drain was completely gone. At a friend‘s place it was still there. So pretty random. Being at home it‘s always there. Guess I have to move to my girlfriend‘s... :D

Yeah, I guess. I asked one more colleague, which has 11 Pro and his drain is also 0 percent over night with default settings. Also I made a poll in FB (in my country) about 12 Pro drain over night and most answers were not over 4 percent:/ I don't know what to think, but strongly hope that its software problem and not hardware.

I am using LTE too, as I am with dual SIM ... What a joke also! And I prefer to not imagine how it would be with 5G!

Are you using the same carrier as your friend? Because, yes 0-1% over night is how this type of phone should behave.

But that encourage me to send it back and order a new one as I am still in the return fence.

I don't want to wast my time with the support to, after hours of talk, get a service device which is even maybe a refurbished one which would have been return for this exact issue!

Yes, I am always connected to wi-fi. I also thought it might be with the different routers, so I disabled 5GHz at home since her router does not have that, but it did not help. But what actually helped was disabling wifi connection at home, so only using LTE. But those may come from background refresh only being enabled on wifi, but I don‘t think it affects the drain that much in comparison.

Move in! xD. ****, if this is your second iPhone and the problem still exists... I'm guessing it had to be a software issue :/. Your comment ticks the box for me to get an 11 pro/max only because I care about endurance.

STOP messing with your settings, the fix is just temporary.

As i being saying, the best solution is for the problem being acknowledged by Apple, and for this to happen EVERYBODY should report the problem at customer support by mail, by phone or at Apple stores...DO THIS

Tbh, i may have let go of the lock button after screen went totally black. Then after waiting about 5 sec, apple logo never appeared. So I kinda pressed on the power/lock button bc of that. So far on day 2, it again prevented the drain during my sleep last night so I guess it kinda went well. Let me know about yours.

helder33 wrote:

STOP messing with your settings, the fix is just temporary.

As i being saying, the best solution is for the problem being acknowledged by Apple, and for this to happen EVERYBODY should report the problem at customer support by mail, by phone or at Apple stores...DO THIS

Absolutly true! All ‘solutions’ here do NOT work in the long run... It may look like something is better for a few days untill your iPhone 12 will drain again over night in stand by. At this time of writing there is simply NOTHING that fixes it. We all wait for Apple...

roT- wrote:

Helder. Hoef ik niet verder te rotzooien.

I still have 20 days left to return my iPhone 12 pro. Hope they fix it by then.

Yep, helaas zijn alle ‘suggesties’ uiteindelijk zinloos, het moet komen van Apple maar ja...