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

[SmugMaverick]

When the Pro models get the C1X/C2 next year they'll be ridiculously good on battery life judging by the Air.

 

[Spinarelo]

My air after whole day of use holds still 60% of charge by night

Wow that's incredible! On a 16PM I'm at 60% by noon lol..... Maybe I should stop using my phone as much 😞

 

[ProbablyDylan]

I don't find myself worried about battery on the Air. It's fine. I charge it when it needs to be charged, maybe every other day.

 

[Fred Zed]

Launch day 17 pro max.

 

[Domadia_Jasmine]

Launch day 17 pro max.

So average each charge after 6 days? Maybe a world record...Interesting to know what u do & what u dont do with your phone.

 

[sleeptodream]

Launch day 17 pro max.

Do you leave your phone on a charger or wireless charger a lot? That’d be my guess, considering your battery is only 60% bigger but you have 1/5 the cycles I do lol

 

[T0MMYC]

Launch day 17 pro max.

Launch Day Air 🤪🤪

 

[svish]

24 cycles in 60 days on iPhone 17. Battery health remains at 100%.

 

[nezoder]

A couple weeks later and mine is reporting higher today.

Today
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9/25/2025
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How bro,do you charge your phone overnight leaving on charger or?

 

[mav2012]

Coconut Battery is reporting my 17P (nano sim) capacity as 3945 mAh - I thought the nano sim models were rated at 3988 mAh? Anyone else with a nano sim model seeing something similar?

iOS analytics on the other hand lists maxFCC as 4030 mAh and nominalchargecapacity as 4033 mAh.

 

[BigMcGuire]

Coconut Battery is reporting my 17P (nano sim) capacity as 3945 mAh - I thought the nano sim models were rated at 3988 mAh? Anyone else with a nano sim model seeing something similar?

iOS analytics on the other hand lists maxFCC as 4030 mAh and nominalchargecapacity as 4033 mAh.

Normal for it to be a little bit off. Batteries are never exact. My wife's 17 Pro is 103.9% of design capacity. My 17 Pro Max is 101.7%. Most of my iPhones have been over provisioned above design capacity. My 6+ was the only phone that wasn't (if I am remembering correctly).

 

[mav2012]

Normal for it to be a little bit off. Batteries are never exact. My wife's 17 Pro is 103.9% of design capacity. My 17 Pro Max is 101.7%. Most of my iPhones have been over provisioned above design capacity. My 6+ was the only phone that wasn't (if I am remembering correctly)

Thanks for the reply! Also noticed Coconut Battery shows an incorrect manufacture date as the iPhone says the battery was manufactured in September while CB says 28-Dec-25 which is when I purchased and activated the phone. Must be a CB bug