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My launch day 12 Pro is at 89%. I always have to charge during the day to make it through the day. I would have gladly paid more for a better battery. My 3 year old X made it through a full day without needing a charge. Looks like I’ll be getting a new battery in the fall.
Yes my old XR had better battery life.
 
My 12 Pro is still reporting 100% on the battery (101% on coconut), which is certainly fine with me. My XS only reported 98% when it was new, and I should have just swapped it under the 14-day return period but didn't. After two months of it dropping more, they wouldn't replace it under warranty, saying it was acceptable. I think that phone is on like 76% now.
 
That’s crazy, honestly. My iPhone 11 base model is at 92% and ive had it since it launched.
I will have to wait out until we get the 13 since I don’t have a huge upgrade need, but I feel awful for the iPhone 12 users whose batteries are going to go kaput within a few years. :( that’s planned obsolesce (?) on a WHOLE new level and is pretty scummy.
 
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FYI.... to anyone who finds Safari high up on their battery usage list:

Are you using MacRumours on your device? If so, stop that and report back.

Some JS code running on the MacRumours forum is VERY CPU intensive. I got an iPhone 12 Pro a few weeks ago and was convinced my battery was a dud. If I used Safari (browsing these forums, it so happens) for 30 mins, half my battery would be gone. It was MacRumour's fault. With that out of the equation, my battery life is fine. I am very hesitant to use these forums on my phone as I don't want to wreck the battery health prematurely (the back of my phone gets extremely hot after 5 mins on here, too).
 
FYI.... to anyone who finds Safari high up on their battery usage list:

Are you using MacRumours on your device? If so, stop that and report back.

Some JS code running on the MacRumours forum is VERY CPU intensive. I got an iPhone 12 Pro a few weeks ago and was convinced my battery was a dud. If I used Safari (browsing these forums, it so happens) for 30 mins, half my battery would be gone. It was MacRumour's fault. With that out of the equation, my battery life is fine. I am very hesitant to use these forums on my phone as I don't want to wreck the battery health prematurely (the back of my phone gets extremely hot after 5 mins on here, too).
Do you know the specific processes used on JS that do this? You could submit a help ticket to the admins and see if they can do anything about it w/their host. I’d imagine the more complicated codes have to be run in a website, the more battery power is eaten up because it’s loading so many complex things.
 
Happy to get my phone replaced for display issues. 100%
fresh battery makes a difference
 
FYI.... to anyone who finds Safari high up on their battery usage list:

Are you using MacRumours on your device? If so, stop that and report back.

Some JS code running on the MacRumours forum is VERY CPU intensive. I got an iPhone 12 Pro a few weeks ago and was convinced my battery was a dud. If I used Safari (browsing these forums, it so happens) for 30 mins, half my battery would be gone. It was MacRumour's fault. With that out of the equation, my battery life is fine. I am very hesitant to use these forums on my phone as I don't want to wreck the battery health prematurely (the back of my phone gets extremely hot after 5 mins on here, too).
Just install AdGuard - problem solved.
 
IT seems the 12 series batteries have bad chemistry and there are still to small. I hope with the iPhone 13 and SE 3 we see better batteries.

My launch day 12 Pro Max battery is on par with 18 month old XS Max in terms of battery life, which is sad, and don’t make no sense.
 
My 12 Pro is now at 90% & I'm sure it was 100% when I last checked it a few weeks ago. My 11 Pro Max only got to 97% after a year of similar usage.

We're on vacation & phone has got *very* hot on wireless CarPlay / wireless charging in a Hyundai Tucson rental car using Google Maps - could it degrade that badly in just 5-days?

I'm generally careful with my phones & only charge it overnight daily / every other day - it's been generally lower usage at home this year & has never seen 5G.
89% today - wireless CapPlay (in a hot country) is eating it alive
 
The phones definitely have wors battery life than then our previous X in the same timeframe. My wife and I both are at 89% with launched Pro Max. Our usage and charging patterns are different. I use the phone mostly on WiFi while she on cellular and I charge with MagSafe while she charge with a 30W cable.
 
My battery life was at 93% when I first visited this thread a few days ago and now it’s at 92%. Something is definitely wrong.
 
I just noticed this the other day. My 12 Pro Max was at 98% before the iOS 15 dev betas and it’s now down to 93%. I confirmed with coconutBattery that it’s at 93.7% too so the health readings aren’t totally inaccurate. That seems like a lot of wear for a 10 month old device when my XS Max which I had to charge 3 times a day because the battery life was always awful was only at 85% after 2 years of that and I’m not even using a rapid charger with my 12 Pro Max.

I was getting 10-12 hours screen time between charges with iOS 14 and iOS 15 dev beta 4 right now I’m lucky to get 7 so that has been felt too.

It’s not 5G in my case because my MVNO Tello doesn’t have 5G access until Apple fixes the carrier bundle hopefully in the fall.
 
The phones definitely have wors battery life than then our previous X in the same timeframe. My wife and I both are at 89% with launched Pro Max. Our usage and charging patterns are different. I use the phone mostly on WiFi while she on cellular and I charge with MagSafe while she charge with a 30W cable.
Perhaps apple cut corners and put in cheaper batteries in the 12 series.
 
Perhaps apple cut corners and put in cheaper batteries in the 12 series.
Could be. Maybe those cheaper batteries are causing the the health to deteriorate quit fast for some in combination with buggy 5G antenna tech causing more daily drain...I guess only Apple can say for sure which I doubt they will.
 
Could be. Maybe those cheaper batteries are causing the the health to deteriorate quit fast for some in combination with buggy 5G antenna tech causing more daily drain...I guess only Apple can say for sure which I doubt they will.
Do you think Apple will fork out the cost for the 12 series users of a new battery?
 
Launch day 12 PM with latest 14.7 battery still has 100% health with to 212 charge cycles and battery consumption aren’t too bad with 3.5h SOT with 1.8h of screen-off-time using about 25% battery from full charge. It should last to about 12-13 hours of SOT plus an additional 7 hours of screen off time giving a total of 20 hours to 23 hours of total runtime at this rate which is close enough to launch day 12 PM battery test on YouTube vids
0796A548-3662-4724-9C58-F14CB54B0CA3.png

00287BDC-A0F4-44DC-BDC6-DEC1A86EC615.png
 
Launch day 12 PM with latest 14.7 battery still has 100% health with to 212 charge cycles and battery consumption aren’t too bad with 3.5h SOT with 1.8h of screen-off-time using about 25% battery from full charge. It should last to about 12-13 hours of SOT plus an additional 7 hours of screen off time giving a total of 20 hours to 23 hours of total runtime at this rate which is close enough to launch day 12 PM battery test on YouTube vids
View attachment 1816340
View attachment 1816339

I miss that awesome battery life so much. My 12 Pro Max running iOS 15 DB4…

34d999c3f8ba1f090070d71edf3ac1ac.jpg
 
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Just been lucky with the battery lottery. I exclusively use the Magsafe charging and I rarely to never use the phone while charging (as it helps with heat output especially with Magsafe). Also, my phone barely gets warm with my everyday tasks, including hours of Messenger video calls on 5G and LTE (mostly defaults LTE inside the building, setting is in 5G Auto). Low overall CPU activity helps with those nice battery runtimes. So far, my all apps, including the notorious Reddit iOS app are behaving perfectly leaving no excessive battery drain when screen is off. Also, I have location settings on every app set to "while using" with most apps allowed for precise location settings
 
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