iPhone 17 iPhone 17 Series Battery Mega-Thread: Life, Cycles, Capacity, Health, etc.

[Jackbequickly]

Shouldn’t have to reboot a phone.

Maybe you should not have BUT, it is wise when having any unexpected problem on your Apple devices, to restart them. I, personally, could not get my AirPods to work when I did an update and a reboot fixed. I have had friends who claim the same. It is really the first thing one should do when you have an unexpected problem.

 

[Ameer_1]

iPhone 17 Pro
Cycle Count - 18

 

[NotApplicable]

It’s interesting how wide the experiences are here with battery.

On my 17 Pro (non-Max), I’ve been up for over an hour, on my phone the entire time. I still haven’t ticked down to 99% from 100%!

Edit to add: have you been by chance shopping on Amazon? I was doing some Prime day shopping yesterday, and the Amazon app was absolutely slaughtering my battery. Phone was hot, percentages were melting off like butter. That app is an absolute dumpster fire of inefficiency, apparently.

 

[spcdust]

Coconut battery says the design capacity of my 17PM is 4768 mAh but I thought it was 4823 mAh. Also I can’t see the manufacturer of the battery. It’s just blank.

Similar to mine, it's interesting that the manufacturer date seems incorrect but assume that's a Coconut reporting bug. The battery manufacturer is Huapu Technology

This article may explain the difference between Design Capacity and Full Charge Capacity:

https://www.quora.com/Why-is-my-laptop-batterys-full-charge-capacity-greater-than-its-design-capacity-Shouldnt-it-be-the-other-way-around

 

[Apple_Tiger]

Coconut battery says the design capacity of my 17PM is 4768 mAh but I thought it was 4823 mAh. Also I can’t see the manufacturer of the battery. It’s just blank.

Coconut battery app needs an update to get the updated capacity. Currently the app isn’t accurate

 

[LacrosseChic]

Just downloaded iMazing and this is mine (nano-sim version)

 

[LacrosseChic]

Coconut battery says the design capacity of my 17PM is 4768 mAh but I thought it was 4823 mAh. Also I can’t see the manufacturer of the battery. It’s just blank.

Mine says the same and that’s imazing and not coconutbattery… hmm

 

[usmaak]

I have a new 17 Pro. I don't even have it hooked up to cellular yet. I installed a few apps today. I charged it last night to 100%. I had 23 minutes of screen on time and 2 minutes of standby and my batter dropped from 100% to 91%. The battery info really isn't telling me anything. I also have a 14PM on iOS 26 that used to have great battery life but since installing 26, it's half of what it used to be. I have no idea what's going on with these things.

 

[Cruncher]

The Designed Capacity in Coconut Battery was also incorrect last year with the 16PM. I messaged the developer of Coconut Battery and got the reply below. I asked again this year about the 17PM. I think apple changed somethings with the reading.

Hey

currently coconutBattery reads out the battery capacity from the battery. All iPhone 16 Pro Max batteries report 4630.
I’m still figuring out a solution for this problem

Best
Chris

 

[spcdust]

Very rough and unscientific "test", but on my 17 Pro Max I just played 30 minutes of a 1080p/60fps YouTube video, over wi-fi, with the volume off and no headphones connected, screen brightness level around 1/3, and phone lost around 3% of battery charge. So, based on that sample, that's about 16.5 hours of video playback from a full charge. Bearing in mind speakers were not being driven or Bluetooth headphones connected, content would be SDR, not HDR, this seems way under the 33 hours Apple boasts for the Pro Max model. Obviously, the 33 hours Apple quotes is the maximum figure under optimal circumstances, so I wouldn't expect to achieve that.

Like I implied, a very rough and hardly scientific "test", but I really can't help feeling the battery performance on my iPhone 17 Pro Max is lackluster compared to my 16 Pro Max.

 

[FeliApple]

Very rough and unscientific "test", but on my 17 Pro Max I just played 30 minutes of a 1080p/60fps YouTube video, over wi-fi, with the volume off and no headphones connected, screen brightness level around 1/3, and phone lost around 3% of battery charge. So, based on that sample, that's about 16.5 hours of video playback from a full charge. Bearing in mind speakers were not being driven or Bluetooth headphones connected, content would be SDR, not HDR, this seems way under the 33 hours Apple boasts for the Pro Max model. Obviously, the 33 hours Apple quotes is the maximum figure under optimal circumstances, so I wouldn't expect to achieve that.

Like I implied, a very rough and hardly scientific "test", but I really can't help feeling the battery performance on my iPhone 17 Pro Max is lackluster compared to my 16 Pro Max.

33% is probably too high for the optimal number. Try 0% and it might increase significantly.

I’ve noticed that up to around 15% it makes no difference vs 0%. By 30-50% the difference is significant but tolerable, on newer, large battery iPhones on original iOS version it doesn’t kill battery life. 50% is a little more significant. 70-100% kills battery life, and the difference skyrockets as you go up.

20% might be good too. That’s around the middle of the sun in Control Centre.

 

[Cruncher]

My iPhone is at 100% and Coconut Battery shows 96.5%. With my older phones when I let it on the charger, it did go up to 100%. Here it just stays and "only" shows 101.9%

I think the readings are definitiely even more different than last year. Let`s see if they can fix it. Also Battery Manufacturer is not showing. It is not the end of the world, it is just interesting.