Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.

blotchy-veil

macrumors member
Jan 29, 2024
45
62
All good points. Thanks for clarifying. My understanding is that the pro has a 3200ish battery capacity and the 13 pm has 4300ish. That means a 1100ish capacity improvement. 1100 is a 34% increase over the 3200 in the 15 pro. I think that math checks out, but feel free to correct me. Math is not my field.
The math is because "direction" matters.

iPhone 13 Pro Max -> iPhone 15 Pro
4300mAh/3200mAh = 1.34 (+34% battery capacity)
9h/6h = 1.5 (+50% of my usage time)

vs iPhone 15 Pro -> iPhone 13 Pro Max
3200mAh/4300mAh = 0.74 (-26% battery capacity)
6h/9h = 0.67 (-33% usage time)

🍻
 

Ahiqar

macrumors regular
Aug 8, 2007
106
57
Fox Cities, WI
The math is because "direction" matters.

iPhone 13 Pro Max -> iPhone 15 Pro
4300mAh/3200mAh = 1.34 (+34% battery capacity)
9h/6h = 1.5 (+50% of my usage time)

vs iPhone 15 Pro -> iPhone 13 Pro Max
3200mAh/4300mAh = 0.74 (-26% battery capacity)
6h/9h = 0.67 (-33% usage time)


🍻
I see. Thanks for clarifying. Very helpful.
 

chfilm

macrumors 68040
Nov 15, 2012
3,415
2,099
Berlin
The battery on my 15 pro is HORRIBLE compared to my two years old 13pro which my girlfriend still uses. She outruns me almost every day and she is a very heavy instagram user. The battery on the 13 pro is at only 87% capacity and still is so much better. I really dislike the 15 pro and wish I had gotten the max this time. Now I'm stuck on a two year financing deal with Apple - I really wish I could upgrade again this year as I'm almost sure theyre gonna fix it.
 
  • Wow
Reactions: TacoFan

kristof461

macrumors regular
Oct 4, 2023
205
66
To
Come from a release day iPhone 12 to a release day iPhone 15 Pro and for me battery life is good. I can run it down in 12 hours or so if I hit it hard, but today it's been off charge since 05:56 and at 18:11 I'm still at 67% (admittedly with little use and being on strong wifi all day). 100% capacity and 168 cycles.

A

View attachment 2353957
To be honest it doesn't look like a solid battery. Yes 12h but mostly having your iPhone on table or inside your pocket. You were barely using your phone and still you still lost 33%. If you touch it for a while you will lose even more. Yes there was some background sound activities but let's face it. Not that much. To me it looks the same as mine Pro. On mobile data max SoT is 3h.
 

kristof461

macrumors regular
Oct 4, 2023
205
66
Personally after the 17.4 update my battery has improved
I hope for the same.

The worst part is that after clean instal I could get 9-11h on Wifi. After 2-3 weeks again only 6h on same wifi network. On mobile data? Half of wifi time. Maybe even less. That means 2-3h sot right now. Unusable. Someone can say "you found solution" maybe but I am tired of erase and all processes I need to do after that. I've done it 4 times on my 15 Pro. Ive never done that so often. Today I tried "reset network settings". Because mobile data and Wifi were considered as an issue I hope it will help.
If not I will try reseting all settings. It deletes Apple Pay cards (I hate that) but it is still better option that clean install.

Anyway. Clearly something is not right. My wife's 14 plus also loses battery to fast but she doesn't see this. So I think iOS 17 is full of bug and worst battery performance in Apple's history. I know I know. After every update people say things like that. Sure but mostly one clean instal or hard reset (which people don't try before posting) resolve the problem. Not this time. As I said. I've done clean install 4 times and it helps only for a while. Why? I asked Apple to check logs. Maybe there is something in the background which we don't see.
 
Last edited:
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.