iOS 14.2/14.3 battery drain bug!

I updated to iOS 14.3 last night with a fully charged battery. The battery has been totally drained on my iPad Pro 12.8 and now won’t re-charge. I need to access my iPad as important information on there. I can’t access anything.

This is a user-to-user technical support site operated by Apple, why are you yelling at amberge who is just another used with a battery problem. Call AppleCare, ask to speak to a tier 2 support person, report your problem and volunteer to put a battery usage profile on your iPhone so they can fix the issue.

Thank you lindros2 - I had forgotten mobile data was on.

That could have been very costly. (I don't have/need lots of data usually). I used it on Friday for something away from the house.

It remains to be seen if it helps the battery drain, since I've only just turned it off.

Thanks again.

I understand for many users battery is draining faster but for the time being you have to use different alternatives like Turning off location, turning off background apps refresh, go for low brightness, use dark wallpapers, turn off vibration while call ringing and others, this will save them alot of battery and these are basics for Iphone.

It is clearly a bug as amber said. My iPhone, on low power mode, can lose 10% battery life in an hour even without be used.

Even Apple customer agent agreed that this was not normal and that my settings were optimal.

Again, I'm happy that iOS 14.3 works for you. On my end I can't wait for a fix from Apple has I'm struggling to keep my iPhone alive with a very limited daily usage.

I’ve tried turning off all the things you’ve mentioned & more, but why do I even have to do so?! Didn’t all of us buy these iPhones to actually use them? I’ve never had any problems with my Apple devices, but this battery issue is ridiculous! I’ve purchased & returned 2 iPhone 12’s because of the battery heat & drain. Now I’ve got an iPhone 11& I’m still having the same problem. I’m beyond over it & I’m ready to buy a Samsung.

As I wrote earlier, after installing a 14.3 upgrade, I've noticed that my battery started draining rather fast - up to 50% - 60% in an hour (1st gen SE) so I had to constantly charge the phone, thanks to a battery cover. The original battery's health indicator was at 86%, which is reasonable for a four years old phone. I think that the upgrade exacerbated the issue, so I bought an aftermarket battery and installed it. So far, so good (knocking on the wood).

Cheers to the community.

I had Apple Support to look at my phone via remote diagnostics. They analysed it and said "there is a hardware issue with the battery". The betray health is 99% though and I never had this problem pre-iOS 14.2/14.3 - but I guess I have to get the battery replaced now.

reset is useless you wasted your time :/ we needs IOS 14.4 or 14.3.1 i phone called APPLE now they told me cos i m VIP i can have update now and you have to wait JANUARY 1 XD

best way will be to go back to 14.1 till 14.4 comes but not possible anymore cos not signed again...

It looks like I found the problem, at least for my iPhone 12 Pro. As Apple suggests, look in Settings/Battery and see which apps are using a lot of power -- esp. any marked with "Background". In my case, the Wahoo Elemnt app (connects iOS devices to exercise equipment popular w/ cyclists) was constantly running in the background. To fix it, I just went to Settings, Background App Refresh, and turned Background Refresh off for that one app (everything else left on). I also noticed that Wahoo released a new version of the app 5 days ago. It didn't specifically mention battery drain so, for the time being, I'm leaving Background Refresh off for that app but it's possible that they fixed it. In the meantime, I'm just happy that my phone works as it should. Bottom line .. look for a rouge app that is using power in the background.

For me (11 pro max) the issue is pretty obvious and it all started with iOS 14.

I don’t have severe battery drain and it would still last me a day. But I notice a huge difference with mobile data turned off.

During the night with mobile data turned on, battery drains 30% on avg. With mobile data off battery drains only 4%.

At home my phone is always connected to WiFi so I got curious why turning on / off mobile data makes a difference. After many hours of diagnosing I noticed with mobile data ON and in sleep mode, my phone keeps reconnecting to WiFi every 10 seconds. Won’t do this whilst using the phone or mobile data off. You can only notice this by monitoring clients list on access point and see the iPhone device reappearing every 10 seconds. I can well understand how this constant reconnecting to WiFi drains the battery.

Why this behavior I don’t know and I guess that is the problem (at least for me). I tried other brands of APs and same behavior.

I also tried full reset and recently upgraded to 14.3 and issue persists.

I encourage others to try this. Before you sleep turn off mobile data (with WiFi on) and compare battery drain to prior nights with mobile data on.

I've just complained on the feedback form; also lodged complaints with the FCC and FTC, for what they are worth.

I also purchased a Moto G Power, reduced to $170 at my local Target store. I just cannot be bothered giving any more business to a company that is so clearly forcing obsolescence on older phones, and ignoring the many complaints from consumers about the last few IOS updates.

Ios 16 when you buy a new phone?

who are you?? another apple genius?? Realy thats your help?? check battery health??

It´s a bug on ios 14.3 like all the updates apple has historically released. I dunno whats wrong with software enginners...