iPhone 16 Pro Max Battery Health Still 100% on My iPhone 16 Pro Max After 239 Cycles. How?!

[russell_314]

Hi everyone!

I’ve never posted here before, but I wanted to share something I’ve never experienced with an iPhone to see if anyone else has.

I got my iPhone 16 Pro Max (1tb natural titanium) the morning of launch day, directly from Apple, and I’ve used it every day since. I just checked this morning — and to my disbelief, after 239 full charge cycles, it is still at 100% battery health.

I’ve never seen anything like this on an iPhone before.

I haven’t done anything extreme. I enabled the 80% charge limit on day one, and otherwise just used it like any other phone. No Low Power Mode. No battery-saving tweaks. Just real-world, daily use. I’m so impressed (and frankly, shocked)!

Here’s what my setup and usage looks like:

• I average ~10 hours of screen time per day
• I start charging when the battery hits 30% (I have a Shortcut automation that pops up a reminder to charge the phone when the battery drops to 30%)
• The 80% charging limit has been on since day one
• I use the phone while it’s charging
• I don’t leave it charging once it hits 80%
• I charge with Apple’s 20W USB-C power adapter and an Anker USB-C cable
• I’ve never used wireless charging
• I don’t use battery cases or external battery packs
• Apple Intelligence is enabled but I don’t use it
• Raise to Wake and Tap to Wake are both enabled
• I run a VPN 24/7
• iCloud Private Relay is always enabled
• Mostly on Wi‑Fi, occasionally 5G
• Background App Refresh is fully disabled
• Dark Mode is always on
• Brightness is around 50% but set to automatically adjust
• True Tone is enabled
• Auto-Lock is set to 30 seconds
• Always-On Display is enabled (but with wallpaper disabled)
• I use two location-based lock screen widgets: Weather and Sunrise/Sunset
• I also use the Weather widget on my Home Screen
• Location Services are enabled for a handful of apps
• I use “Siri/Hey Siri” voice commands every day — mostly for music control, texting, checking the weather, and other quick tasks
• I use AirPods and AirPods Max with it every day
• I stream Apple Music, Netflix, Apple TV+, and YouTube daily, often in picture-in-picture mode
• I’m always on the latest public iOS release (currently 18.4.1) — I’ve never used betas

Here’s a quick screen recording showing my 239 cycles and 100% health. I blurred my name, serial number, wifi and Bluetooth address for privacy.

For this level of use, I did not expect the battery to still be at 100%. So my question to you folks is: Has anyone else seen this kind of long-term battery performance?

View attachment 2508164

Cheers!

Way too much mental effort put into something that cost $119 to replace.

I find it really entertaining that people who seem to have the latest iPhone always seem to worry about getting a decade out of their battery. For the most part, it’s not people saying oh man my iPhone 8 battery health is going low. It’s always the latest iPhone. If you’re always buying the latest iPhone, you never have to replace the battery.

I’m not saying don’t check your battery health, but if it’s causing you worry to the point, you’re writing an essay on battery health.


As to the original question, battery health isn’t 100% accurate. To the best calculation, the percentage is based on specifications not versus what your battery was when it was new. It’s like likely new batteries could be 5% over specification so it’s always going to show 100% till it drops down to 99%. I suspect this is done because Apple doesn’t want people flipping out when they see their battery health is 99% on their week old iPhone. Your battery health is 99% on a week old iPhone because it cannot be 100%. That’s impossible.

 

[Mikey86uk]

iPhone 16 Pro Max.

Charge limit set to 80%. Only ever charged using type C. It did drop from 99% to 98% really quickly.

It’s inevitable, so never mind 😂

 

[FeliApple]

Way too much mental effort put into something that cost $119 to replace.

I find it really entertaining that people who seem to have the latest iPhone always seem to worry about getting a decade out of their battery. For the most part, it’s not people saying oh man my iPhone 8 battery health is going low. It’s always the latest iPhone. If you’re always buying the latest iPhone, you never have to replace the battery.

I’m not saying don’t check your battery health, but if it’s causing you worry to the point, you’re writing an essay on battery health.


As to the original question, battery health isn’t 100% accurate. To the best calculation, the percentage is based on specifications not versus what your battery was when it was new. It’s like likely new batteries could be 5% over specification so it’s always going to show 100% till it drops down to 99%. I suspect this is done because Apple doesn’t want people flipping out when they see their battery health is 99% on their week old iPhone. Your battery health is 99% on a week old iPhone because it cannot be 100%. That’s impossible.

I keep devices for a while (…or forever, I don’t sell anything, and I use them for years and years on end), and I like to keep track of the statistics. But I never worry. Worrying is pointless because there’s nothing I can do to stop the degradation. I keep my iOS devices for years and I’ve never had a charging limit. Battery life never worsens anyway, regardless of my battery health.

If people were to keep their devices for years, maybe I would understand. But if you are upgrading every year, worrying is the most pointless thing ever. If you were to keep track of the statistics, like me, and it came from a place of pure interest, I get it. But worrying as a yearly upgrader? The most pointless thing ever.

 

[russell_314]

I keep devices for a while (…or forever, I don’t sell anything, and I use them for years and years on end), and I like to keep track of the statistics. But I never worry. Worrying is pointless because there’s nothing I can do to stop the degradation. I keep my iOS devices for years and I’ve never had a charging limit. Battery life never worsens anyway, regardless of my battery health.

If people were to keep their devices for years, maybe I would understand. But if you are upgrading every year, worrying is the most pointless thing ever. If you were to keep track of the statistics, like me, and it came from a place of pure interest, I get it. But worrying as a yearly upgrader? The most pointless thing ever.

There’s nothing wrong with keeping track of the statistics or even being interested in how battery degradation works. I just feel some people genuinely get upset when their iPhone goes down to 99%. It’s kind of like this perfect device they have is now damaged. Like having a new car but now it has a door ding.

 

[Homme]

It’s simple really… since the 15 lineup battery capacity has increased by 500 to 1000 cycles hence why alongside the A18’s microarchitecture and battery efficiency you get the results your seeing

With my 16e I have 139 cycles done and my battery health is still on 100%😁

 

[FeliApple]

There’s nothing wrong with keeping track of the statistics or even being interested in how battery degradation works. I just feel some people genuinely get upset when their iPhone goes down to 99%. It’s kind of like this perfect device they have is now damaged. Like having a new car but now it has a door ding.

Yeah, that is not good, not only because it can’t be stopped, but also because it doesn’t matter.

My iPhone Xʀ dropped to 89% after 6 years and 360 cycles whilst remaining on iOS 12 and battery life is like-new. I use an iPhone 6s on iOS 10 with 60% health and battery life is like-new.

Worrying about the device dropping a couple of percentage points when it is practically new is pointless.

 

[The Game 161]

Mine is 93% with 362 cycles

 

[donawalt]

My Settings says 103 cycles/100% (iPhone 16 Pro Max), but Coconut Battery says 103 cycles (same) and 104.4% battery health - designed for 4,630 mAh, full charge capacity is 4,833 mAh.

 

[GoofyCyborg]

 

[jekim]

View attachment 2538378

 

[QCassidy352]

My 16 pro is at 244 cycles and showing 100% also. But of course it’s degraded even if it’s not showing; that’s just how batteries work. Definitely the best battery life I’ve ever had on an iPhone though!