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iPhone 15 Pro Max Are you limiting your iPhone 15 Pro battery to 80%?

I will be turning that on because my battery health on my 12 Pro Max was 90% with the initial 2 years of me charging to full every night.

For the past year I’ve only charged to 85%. My battery would be about 25% by the night with only about 3 hours screen time.

If I charge to full, the battery takes way longer to drop to 85 than from 85 to drop to 70 if that makes any sense.
 
aaron5566 said:
If I charge to full, the battery takes way longer to drop to 85 than from 85 to drop to 70 if that makes any sense.
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That’s what I thought after few days of testing full charge and 80%. Maybe it is all about software. I don’t know. Anyway. 90% capacity after 2 years is pretty good result
 
kristof461 said:
That’s what I thought after few days of testing full charge and 80%. Maybe it is all about software. I don’t know. Anyway. 90% capacity after 2 years is pretty good result
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I think the battery health is not very accurate. I remember my 7 Plus after 4 years had 86% health but a full charge will only last me about 2 hours screen time. I remember always having to plug my phone in at around 5pm.
 
My 15 Plus still shows only 2 battery cycles with this 80% feature turned on. Played Pandora yesterday for 6 hours, at least. Kinda crazy.
 
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aaron5566 said:
I think the battery health is not very accurate. I remember my 7 Plus after 4 years had 86% health but a full charge will only last me about 2 hours screen time. I remember always having to plug my phone in at around 5pm.
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We are not talking about capacity. We were talking battery charge status. I don't how to say it. We both discovered that discharging same 15% last longer if you discharge from 100 to 85 than from 80 to 65%
janeauburn said:
My 15 Plus still shows only 2 battery cycles with this 80% feature turned on. Played Pandora yesterday for 6 hours, at least. Kinda crazy.
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Yes yes. We all know that. I showed math equation. Simple thing. So it is not a rocket science if you barely use your phone. You say about 6h of Pandora. Well I am not familiar with pandora but I know what you've said before.You said that you connect your phone to a charger once it reaches 60%. So once again. It gives only 20% per day. You need 5 days. 5 days to make a cycle. If you don't you is at all it could be 6 days.
Charging your phone computer etc to 80% doesn't mean you will save cycles. No. You just treat your battery well because batteries don't like to stay too long on 100%.

If...if you used your phone below 60% but not only to 59% well maybe your stats stuck. You can compare it with Coconut Battery app.
 
kristof461 said:
We are not talking about capacity. We were talking battery charge status. I don't how to say it. We both discovered that discharging same 15% last longer if you discharge from 100 to 85 than from 80 to 65%

Yes yes. We all know that. I showed math equation. Simple thing. So it is not a rocket science if you barely use your phone. You say about 6h of Pandora. Well I am not familiar with pandora but I know what you've said before.You said that you connect your phone to a charger once it reaches 60%. So once again. It gives only 20% per day. You need 5 days. 5 days to make a cycle. If you don't you is at all it could be 6 days.
Charging your phone computer etc to 80% doesn't mean you will save cycles. No. You just treat your battery well because batteries don't like to stay too long on 100%.

If...if you used your phone below 60% but not only to 59% well maybe your stats stuck. You can compare it with Coconut Battery app.
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60-80% lol. Hilarious.
 
Nope. I charge it at night using optimized charging, I take it off the charger in the morning, and I put it back on the charger at night no longer how long it's been used that day. It usually holds at 80 on its own until later in the night.

My 13 Pro Max and 14 Pro Max were turned in at 98% and 99% max health respectively. I think it's ok to just charge the thing at night when you're not using it, but hopefully this setting addition will result in a bit less complaining about battery worries.
 
rkuo said:
So none of you hand down your phones ... you just trade them in? Our phones could have a life of about 5-7 years within the family.
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I make that decision at trade-in time. Usually the old one goes back to Apple, and I'm assuming that because I turn them in looking great that they just turn it right back around to someone else after reconditioning whatever it is they recondition.

Either way, I'm not going to baby my battery every day that I'M using the phone just in case I want to give it to someone else. That's nonsense.
 
JCCL said:
Just curious, are you using this setting. I’ll try and if I can make it though the day I’ll use it. My surface pro 8 has this feature and is still showing over actual capacity over design capacity, so I’m inclined to try it in the iPhone. What do others think?
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Unnecessary pre-optimization, I think. Especially for someone like me that upgrades annually anyway. My 14 Pro Max was at 97% max capacity when I got my 15 Pro Max, and that was with me being pretty casual with how I charge it. I have it on a mag safe charger over night, every night, and periodically on chargers in my office/car throughout the day (I like to keep the battery on the higher end of its capacity ... makes me feel better, I guess).

That said, my phone is never in an overheated situation (which can damage the battery). I don't use a case (which helps keep it cooler), it doesn't sit on the dash/seat of a hot car, etc.

So, for me, limiting my phone to 80% charge capacity is entirely unnecessary.
 
Is the feature just not working for anyone else? I have it enabled and it always wants to go over 80% still. I figured the first time it was just a calibration thing so I let it go to 100%, but after that it still goes over 80 each time til I take it off.

On iOS 17.0
 
dan428 said:
Is the feature just not working for anyone else? I have it enabled and it always wants to go over 80% still. I figured the first time it was just a calibration thing so I let it go to 100%, but after that it still goes over 80 each time til I take it off.

On iOS 17.0
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I've read some people complain about that. It looks like another bug. Try hard reset.
 
dan428 said:
Is the feature just not working for anyone else? I have it enabled and it always wants to go over 80% still. I figured the first time it was just a calibration thing so I let it go to 100%, but after that it still goes over 80 each time til I take it off.

On iOS 17.0
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I had to discharge down to around 30-40% and then charge to 100% a couple of times to calibrate before it started to keep it around 80%
 
magbarn said:
I had to discharge down to around 30-40% and then charge to 100% a couple of times to calibrate before it started to keep it around 80%
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Oh interesting.. I’ll let it charge completely again then (only did it once)
 
dukebound85 said:
aren't battery replacements like $99? Just replace it if ever degrades

This is a ploy to get people to never use the relatively cheap service Apple provides likely at a loss.
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Caveat, I find battery life is usually awful between 81-85% but Apple won’t replace the battery until it reaches 80%.
 
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thatJohann said:
This. For me, it's pointless to cap my charge to 80%. Also, I don't want 80% of my battery, I want 100% of it when I'm out and about. The batteries this year are mediocre so the more I have the better.
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I’m ending up with about 60% of charge at the end of the day now on the iPhone 15. I’ve been running it just with the default charging for the last couple of weeks to get a feel for how much battery I need most days. There are a few days where I need more. I will probably be turning this feature on as it seems to meet my pattern of used. It does not meet your. We all have different needs.
 
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I turned it on for my IP15 Pro. The phone sits in a Qi charger stand all day with Standby on. If I need 100% for some rare trip, I can always turn it off and power up.

I keep my phones 4-5 years so whatever helps to extend the life of the device.
 
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I turned it off again because I realized how silly it is. Why shouldn’t I use the longevity of my brand new iPhone 15 Plus battery to its fullest. Using it only between 80 % and 30 % is basically like using an iPhone that only has battery health of 80 % remaining after x years in the first place.

I no longer fast charge (unless I am on vacation) though! Also no more wireless charging. Too much heat. I think that’s what killed my 12 PM battery, not charging it to 100
 
I turned this on in my battery settings to stop charging at 80%, after disappointing battery health on my 14PM after a year down to 91% battery health. I'll be experimenting with this 17 IOS feature this time around.
 
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contacos said:
I turned it off again because I realized how silly it is. Why shouldn’t I use the longevity of my brand new iPhone 15 Plus battery to its fullest. Using it only between 80 % and 30 % is basically like using an iPhone that only has battery health of 80 % remaining after x years in the first place.

I no longer fast charge (unless I am on vacation) though! Also no more wireless charging. Too much heat. I think that’s what killed my 12 PM battery, not charging it to 100
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You don’t have to use it only between 30-80%. All this does is set a default charge level that is easy on the battery. If you think you’ll need more charge on a give day, switch it back to normal charge. (I do wish it was only one tap). This works well for a lot of us who don’t use all the battery every day. It’s just a waste to charge it to 100% for us. Since I got my 15 Pro, most days I end up with 60% charge left. I did that to see what the new phone was like. I’ll be turning on this charging mode.

If you are someone who regularly uses more than 80% of your charge a day, then yes, it would be silly to do this.
 
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