iPhone 15 Pro Max iPhone 15 Pro Max (Battery Manufacturer / Capacity)

[MacCheetah3]

Reported maximum mAh changes with the % of charge. It's reported higher if the phone is at 100%, then it will report a lower value. Values are not precise anyway, we are looking at different estimates of identical batteries, which won't predict how they perform. I obsessed too with my 13 Pro at the time, the battery was always weak but reported mAh were very high, on par with other units that lasted more than my 6 hours SOT

Routine calibration is key. Although, even then, it’s a constant estimate — just a much better guesstimate.

To maintain accuracy, a smart battery should periodically be calibrated by running the pack down in the device until “Low Battery” appears and then apply a recharge. The full discharge sets the discharge flag and the full charge establishes the charge flag. A linear line forms between these two anchor points that allow SoC estimation. In time, this line gets blurred again and the battery requires recalibration.

BU-603: How to Calibrate a “Smart” Battery

The chemical battery representing the actual energy storage remains the master while the digital battery provides peripheral support by relying on the…

batteryuniversity.com

iFixit Support

Repair your electronics yourself. iFixit is the repair manual you can edit. We sell tools, parts and upgrades for Apple Mac, iPod, iPhone, iPad, and MacBook as well as game consoles.

help.ifixit.com

 

[coso]

Routine calibration is key. Although, even then, it’s a constant estimate — just a much better guesstimate.

BU-603: How to Calibrate a “Smart” Battery

The chemical battery representing the actual energy storage remains the master while the digital battery provides peripheral support by relying on the…

batteryuniversity.com

iFixit Support

Repair your electronics yourself. iFixit is the repair manual you can edit. We sell tools, parts and upgrades for Apple Mac, iPod, iPhone, iPad, and MacBook as well as game consoles.

help.ifixit.com

Yeah. But running the battery to almost zero really stresses it out.. maybe I can live with wrong battery estimations..

 

[MacCheetah3]

Yeah. But running the battery to almost zero really stresses it out.. maybe I can live with wrong battery estimations..

It’s only a brief period. I connect the iDevice to a charger almost immediately following the auto shutdown. I’ve rarely followed the part of the instructions suggesting to let the device sit for hours after low power off (e.g., iFixit: “Wait at least five hours, then charge your laptop uninterrupted to 100%”) nor after reaching 100% (in the status bar) — unless I happen to let it charge overnight. In my routine, the battery rarely sits at the extremes (or any level) for very long.

My iPhone X made it five years before dropping to an estimated 79% health — about 1000 full charge cycles. My ~35 month old Apple Watch is at an estimated 84% battery health.

 

[inthequantum]

This year I am really sticking to the 80/20 rule and setting my phone not to charge over 80% unless I am going out for a full day without access to a charger. I think letting it drop below 20% is where the real degradation happens especially if you let it flat out die. I am curious how this will maintain my battery. I only really feel heat coming from this phone when it charges at the bottom range and then cools after passing 50-60% charge. My iPhone 14 Pro Max felt like it was heating up all the time and could have possibly contributed to faster battery degradation.

 

[coso]

This year I am really sticking to the 80/20 rule and setting my phone not to charge over 80% unless I am going out for a full day without access to a charger. I think letting it drop below 20% is where the real degradation happens especially if you let it flat out die. I am curious how this will maintain my battery. I only really feel heat coming from this phone when it charges at the bottom range and then cools after passing 50-60% charge. My iPhone 14 Pro Max felt like it was heating up all the time and could have possibly contributed to faster battery degradation.

Did this with my 13P and I'm at 96% two years later. It's good

 

[MacCheetah3]

I only really feel heat coming from this phone when it charges at the bottom range and then cools after passing 50-60% charge..

FYI, they only “fast charge” to 50%, then ‘normal’ charge to 90%, then finish with a trickle charge. When the charge level shows 100% in the status bar and the device is left charging, the battery will be partially cycled: reach 100%, allow to discharge to ~95%, trickle back to 100%, and so on. I believe, if I recall correctly, you can somewhat witness this overcharge protection in apps such as coconutBattery.

I think letting it drop below 20% is where the real degradation happens especially if you let it flat out die. I am curious how this will maintain my battery.

There are margins on both ends the user is never strictly shown, presumably more so on the bottom. Apple’s engineers know it’s harmful to deep discharge batteries. Additionally, leaving 10 or 20% after an auto shutoff/shutdown allows the device to display the low battery, connect to charger/computer icons/symbols as well as provide helpful services like:

iOS 15: Find My network can still find your iPhone when it is powered off, or factory reset - 9to5Mac

With iOS 15, your iPhone is still traceable through the Find My network even when the device is powered off....

9to5mac.com

(I can’t seem to find the official statement in any Apple Support documents at the moment.)

Nonetheless...

This year I am really sticking to the 80/20 rule and setting my phone not to charge over 80% unless I am going out for a full day without access to a charger.

If it makes you feel comfortable and doesn’t harm/impede anybody else, go for it.

 

[B0bby]

This year I am really sticking to the 80/20 rule and setting my phone not to charge over 80% unless I am going out for a full day without access to a charger. I think letting it drop below 20% is where the real degradation happens especially if you let it flat out die. I am curious how this will maintain my battery. I only really feel heat coming from this phone when it charges at the bottom range and then cools after passing 50-60% charge. My iPhone 14 Pro Max felt like it was heating up all the time and could have possibly contributed to faster battery degradation.

12 Pro 80/20 with 20W only. 96% after one year

13 Pro optimized Battery charging (often 100%) with 5W. 97% after one year

14 Pro 80/20 with 5W and 20W sometimes in rush. 100% after one year.

With the 15 Pro Max I will go 80/20 with 5W. Heat and high SoC kills the battery.

 

[coso]

Oh yeah I love my 5W. In fact I have the problem that I now need a USB-A to USB-C cable thin enough on the C end to fit in the FineWoven case. It needs to be very, very thin

 

[JPack]

Oh yeah I love my 5W. In fact I have the problem that I now need a USB-A to USB-C cable thin enough on the C end to fit in the FineWoven case. It needs to be very, very thin

Just get the Apple USB-C to Lightning Adapter adapter then use with 5W. Guaranteed to work.

 

[JPack]

This seems one way. Other one I can think of is USB-A male to USB-C female adapter. I see this kind of adapters sold in sites like Amazon. Adapter would be only about inch long that goes to charger end, so then you could use USB-C cable that came with the phone, so it fit easily when using case.

You have to use an original Lightning cable. It’s an Apple designed USB-C plug so it’s very thin.

USB-C to Lightning Adapter

The USB-C to Lightning Adapter lets you connect your Lightning accessories to a USB-C-enabled iPhone or iPad. Buy now with fast, free shipping.

www.apple.com

 

[JPack]

But using adapter at the charger end would allow to use original USB-C cable that came with the phone. I guess it should work too unless some hardware inside adapter that is incompatible with iPhone (not sure it is just a pin adapter or some electronics inside)?

Personally, I don’t trust third party adapters at USB-C voltages.

 

[coso]

Well I was thinking more of an Amazon Basics usb-a usb-c cable, but not sure the C end is thin enough

 

[inthequantum]

I have been using a USB-A to USB-C cable that is plugged into a 5w Apple brick. It is amazing how slow it charges lol.

No additional reports of what batteries are in the iPhone 15 Pro Max, although I would expect this thread to pick up more steam once we see more battery degradation.

I picked up a 3-1 Belkin charging stand that I really like and that delivers 15w MagSafe to the iPhone Pro Max and charges my iWatch Ultra at the same time. No AirPods charging case, yet.

 

[Apple_Tiger]

I have been using a USB-A to USB-C cable that is plugged into a 5w Apple brick. It is amazing how slow it charges lol.

No additional reports of what batteries are in the iPhone 15 Pro Max, although I would expect this thread to pick up more steam once we see more battery degradation.

I picked up a 3-1 Belkin charging stand that I really like and that delivers 15w MagSafe to the iPhone Pro Max and charges my iWatch Ultra at the same time. No AirPods charging case, yet.

Since when was there ever an iWatch? I didn’t even know those existed. I do have Apple Watch Ultra 2, but where can I get the iWatch? 🤔🙃😉

 

[sdante]

How it your 15 Pro Max battery aging?
I got 2 x Max with Desay battery in both but one started 4538mAh and other 4501mAh. Now after about 3 weeks better one is still around 4510mAh but worse one is already down to 4470mAh but it takes quite noticeable drop while in use (monitoring battery with iMazing during use). No excessive use or over heating and charging mostly with Apple 5W charger (using 5W charge > Apple USB-A to Lightning cable > Apple Lightning to USB-C adapter > iPhone) so charging wattage after adapters is just around 4W. I don't mind long charging time. Also used few times Apple 20W charger.

What was your battery reading in mAh out of the box and what it is now?

 

[coso]

How it your 15 Pro Max battery aging?
I got 2 x Max with Desay battery in both but one started 4538mAh and other 4501mAh. Now after about 3 weeks better one is still around 4510mAh but worse one is already down to 4470mAh but it takes quite noticeable drop while in use (monitoring battery with iMazing during use). No excessive use or over heating and charging mostly with Apple 5W charger (using 5W charge > Apple USB-A to Lightning cable > Apple Lightning to USB-C adapter > iPhone) so charging wattage after adapters is just around 4W. I don't mind long charging time. Also used few times Apple 20W charger.

What was your battery reading in mAh out of the box and what it is now?

Did you check capacity at 100% charge? Because only at 100% it shows the higher value, if you measure it as say 50% charge you'll see a lower total mAh capacity

 

[BrightCanon]

Not a “Pro Max” but a “15 Plus”. Only posting because someone mentioned they hadn’t seen and Sunwoda Battery’s.

Sunwoda
Full Charge: 4428
Designed Charge: 4384

 

[sdante]

Did you check capacity at 100% charge? Because only at 100% it shows the higher value, if you measure it as say 50% charge you'll see a lower total mAh capacity

I checked with several difference charge levels. From my experience with all my devices in the past, battery charge percentage has almost no influence on full charge capacity reading in healthy battery. For example in my 15 Pro Max full charge capacity can be even few mAh higher at 50% charge than it was at 100%.
Only thing where full charge capacity usually drop, is when you check the reading while having some power hog thing running, like camera.

So it would be interesting to hear what kind of full charge capacity readings others are seeing with their Max?

 

[sdante]

Not a “Pro Max” but a “15 Plus”. Only posting because someone mentioned they hadn’t seen and Sunwoda Battery’s.

Sunwoda
Full Charge: 4428
Designed Charge: 4384

Interesting that good Sunwoda is found in 15 model. Can you recall what was full charge capacity when it was new?
Anyone here has Sunwoda battery in Pro models, especially Max?

 

[BrightCanon]

Interesting that good Sunwoda is found in 15 model. Can you recall what was full charge capacity when it was new?
Anyone here has Sunwoda battery in Pro models, especially Max?

I’m sorry I can’t. Today was the first time I checked. I have only had the phone a little over two weeks. Only 7 Cycles total using the 80% charge limit.

 

[metsjetsfan]

This year I am really sticking to the 80/20 rule and setting my phone not to charge over 80% unless I am going out for a full day without access to a charger. I think letting it drop below 20% is where the real degradation happens especially if you let it flat out die. I am curious how this will maintain my battery. I only really feel heat coming from this phone when it charges at the bottom range and then cools after passing 50-60% charge. My iPhone 14 Pro Max felt like it was heating up all the time and could have possibly contributed to faster battery degradation.

Have u tried charging with a fan pointed at it for those deep cylces. It keeps it cool throughout

 

[Dirty Mac]

15 Pro Max
SIMPLO
4522 mAh

 

[Apple_Tiger]

So according to Coconut Battery, the 15 pro max I have indicates that it's made from Huapu Tech. But when I connect that same 15 pro max to my windows and ran the 3utools, it indicates it's from SIMPLO. Quite interesting.

 

[sdante]

So according to Coconut Battery, the 15 pro max I have indicates that it's made from Huapu Tech. But when I connect that same 15 pro max to my windows and ran the 3utools, it indicates it's from SIMPLO. Quite interesting.

It is the same thing because company name is Huapu (or Huapu/Simplo) nowdays.

Anyone else had their 15 Pro Max battery starting barely from 4500mAh when new and already dropped to around 4470mAh?

 

[B0bby]

I read on reddit, that the first person hit 99%