iOS 18 Battery Life Thread

[MrAverigeUser]

14 PLUS since september 2023 here...

Battery capacity 90% after 1,5 years. I charge overnight in apple´s "battery optimization mode" (first up to 80% , then short before using it the next morning automatical charge to 100%).
I recharge during the day if possible very early, for example if only 40 or 50% capacity).

My personal impression is that since IOS 18.4.1 battery life is longer for both my iPhone 14 PLUS and also for my iPadPro M1 (3rd gen.).

For me it seems even that both are now better performant and work a bit more fluenet than before.

I recommend to put off the IOS devices for some minutes (5-10min) and restart them again at least every week.
especially the iPad seems to clear the RAMand/or cache from useless data and gets even more fluent -and perhaps consumes less energy (just a subjetive impression, no scientific result).

.

 

[nhbone]

I'm seeing random bouts of the iPhone 16 Pro heating up with battery drain. Can't replicate, but it keeps happening.

 

[iDreams]

I'm seeing random bouts of the iPhone 16 Pro heating up with battery drain. Can't replicate, but it keeps happening.

I'm noticing the same random heating up on my 16 Pro and also general high battery drain. Nothing is standing out as the culprit in battery settings.

Battery health is still 100% after 261 cycles. Manufactured August 2024.

 

[Stiille]

Your opinion guys:

My 15 PM is at 93% after 267 cycles.

Better to charge only to 80% and charge more frequently

Or

Charge to 100% and charge once or two times a day

I tend to go with 80% and charge more frequently

What do you guys think, suggest?

 

[ATmahe]

Whatever fits to your daily routines.

I've enabled optimized charging on my 15 Pro, charge it overnight to 100 % and on weekdays maybe (depending on usage) around midday up to 80 % (without limit, because it's in my view/reach).

 

[James6s]

Your opinion guys:

My 15 PM is at 93% after 267 cycles.

Better to charge only to 80% and charge more frequently

Or

Charge to 100% and charge once or two times a day

I tend to go with 80% and charge more frequently

What do you guys think, suggest?

When I had a 15 Pro (battery life wasn’t great) I started using the 80% charge limit, but because of the less than ideal battery life I was charging it multiple times a day back up to 80% from around 35-40%

Each time it’s plugged in (20w charger) the charger is creating heat cycles which is bad for battery health.

Battery health started to drop off at 40 cycles, 99% then 98% by about 48 cycles and so on.

I stopped with the constant plugging in back up to 80%, and let the battery charge higher reducing the need for multiple charges through the day.

Apple later introduced more charge limit options, I now use 95% limit on my 16e.

Your 15 Pro Max will have a lot better battery life than my 15 Pro had, so you may get away with the 80% limit and not needing multiple charges through the day that create the heat.

Or use 90/95% limit

 

[Stiille]

When I had a 15 Pro (battery life wasn’t great) I started using the 80% charge limit, but because of the less than ideal battery life I was charging it multiple times a day back up to 80% from around 35-40%

Each time it’s plugged in (20w charger) the charger is creating heat cycles which is bad for battery health.

Battery health started to drop off at 40 cycles, 99% then 98% by about 48 cycles and so on.

I stopped with the constant plugging in back up to 80%, and let the battery charge higher reducing the need for multiple charges through the day.

Apple later introduced more charge limit options, I now use 95% limit on my 16e.

Your 15 Pro Max will have a lot better battery life than my 15 Pro had, so you may get away with the 80% limit and not needing multiple charges through the day that create the heat.

Or use 90/95% limit

I need to charge my 15 PM at least once each day with limit set to 95% - power user (with movie streaming and gaming) I am.
So you say it’s better to charge to 95% and charge a lot less than to charge up to 80% and charge more often at the day?

That’s what I got from the internet summarised so I am a bit confused:

 

[James6s]

I need to charge my 15 PM at least once each day with limit set to 95% - power user (with movie streaming and gaming) I am.
So you say it’s better to charge to 95% and charge a lot less than to charge up to 80% and charge more often at the day?

That’s what I got from the internet summarised so I am a bit confused:

My 15 Pro had poor battery life and I was plugging it at least 3 times a day. Each time it created heat when plugged in so for me it wasn’t beneficial or practical to use the 80% limit.

I remember I started with a 30w charger which was even hotter in use then I got an Apple 20w.

You’ll find all sorts of articles about battery life, charging etc on the internet. Do what works best for you, battery degradation is inevitable regardless of how we charge and use them.

 

[Reverend Benny]

I need to charge my 15 PM at least once each day with limit set to 95% - power user (with movie streaming and gaming) I am.
So you say it’s better to charge to 95% and charge a lot less than to charge up to 80% and charge more often at the day?

That’s what I got from the internet summarised so I am a bit confused:

There's a lot if "ifs and buts" when it comes to batteries. And while there are recommendations it’s also worth considering if the 20-80% rule is worth caring about. Especially the 20% bit.

An example would be that is the iPhone battery meter something that can be used to apply the 20-80% rule?

Does a phone that's showing 1% battery left actually only have 1% left, or are some of the battery capacity "reserved" meaning it actually have a good bit more juice left?
My guess is that it’s a good bit more power left but by design Apple has made a choice of shutting down the phone when X% is left, could be 5% or could be 20%, we don't know that.

I'm pretty sure Apple do reserve a good bit as its needed for being able to show the empty battery icon, to preserve battery life and also to being able to offer "find my phone" when it appears completely discharged.

 

[HouseLannister]

There's a lot if "ifs and buts" when it comes to batteries.

Yep. We have very little understanding of what Apple's variances and tolerances are when they make the batteries. Or how many get tested during their QC process. We know that not every phone has the same mAh and not every battery lasts for the same number of cycles. But what affects the overall health? Some of that is based on your charging habits. But most of it is beyond your control. The heat in your car on a long road trip can impact a battery far more than optimized charging or charging limits. Not to mention what can happen to the bag of chemicals inside your phone when you drop it. My advice is to budget a replacement battery into your initial purchase of the phone. Assume it is a consumable item and will be consumed. Use the phone how you want to use it and buy that new battery when it is not up to your expectations anymore. Hakuna matata!

 

[goldmac2006]

Your opinion guys:

My 15 PM is at 93% after 267 cycles.

Better to charge only to 80% and charge more frequently

Or

Charge to 100% and charge once or two times a day

I tend to go with 80% and charge more frequently

What do you guys think, suggest?

I hit 212 cycles, dropped to 99% capacity today.

Last time I checked on Easter a week ago it was at 100%.

Just updated to iOS 18.5 beta 4. I do the same strategy with you.

 

[Stiille]

I hit 212 cycles, dropped to 99% capacity today.

Last time I checked on Easter a week ago it was at 100%.

Just updated to iOS 18.5 beta 4. I do the same strategy with you.

Also 15 PM like me? Always 80% only ?

 

[goldmac2006]

Also 15 PM like me? Always 80% only ?

Regular 15 pro
I kept a lower battery charge limit at 90 % during spring break and usually unplug my iPhone the most for a few hours on school days and when I’m at home I charge when I am hanging in my room on the dock.

should I revert back to 90% instead of 95% battery charge limit, dude?

 

[Stiille]

Regular 15 pro
I kept a lower battery charge limit at 90 % during spring break and usually unplug my iPhone the most for a few hours on school days and when I’m at home I charge when I am hanging in my room on the dock.

should I revert back to 90% instead of 95% battery charge limit, dude?

I don’t know actually - I am at 80% limit with my 15PM and need to charge 2 times a day - but I only use 40-50% battery before I charge up again.
Think it’s better for my iPhone, because it only needs 30min to charge to 80%, while to 95/100% it needs over one hour and still need to charge twice a day - I decided it’s better for my iPhone to stay at 80%.

 

[goldmac2006]

I don’t know actually - I am at 80% limit with my 15PM and need to charge 2 times a day - but I only use 40-50% battery before I charge up again.
Think it’s better for my iPhone, because it only needs 30min to charge to 80%, while to 95/100% it needs over one hour and still need to charge twice a day - I decided it’s better for my iPhone to stay at 80%.

Same here it takes 30 minutes to charge to 80% on my 15 pro.

Usually hate pushing it to a lower limit if I’m at school as I mostly have my iPhone sitting on the desk, in my pocket and only charge it if it’s really low.

 

[Stiille]

Same here it takes 30 minutes to charge to 80% on my 15 pro.

Usually hate pushing it to a lower limit if I’m at school as I mostly have my iPhone sitting on the desk, in my pocket and only charge it if it’s really low.

I think the 15 Pro has to low battery capacity to get around with 80% limit - had it for a few days before I got the 15 PM instead and returned the 15 Pro (don’t regret it !!!)

 

[goldmac2006]

I think the 15 Pro has to low battery capacity to get around with 80% limit - had it for a few days before I got the 15 PM instead and returned the 15 Pro (don’t regret it !!!)

So lower it to 80 anyway?

 

[Stiille]

So lower it to 80 anyway?

If you don’t use it much maybe yes, if you use it much you won’t get away with only 80% limit on the 15 Pro. But if it’s plugged in for a long time I would say yes go with 80% limit.

 

[goldmac2006]

If you don’t use it much maybe yes, if you use it much you won’t get away with only 80% limit on the 15 Pro. But if it’s plugged in for a long time I would say yes go with 80% limit.

Heavy user when I go out and about and go to school.

I only plug it in a lot like my dock when I’m at home and hanging in my room or on my desk

 

[Stiille]

Heavy user when I go out and about and go to school.

I only plug it in a lot like my dock when I’m at home and hanging in my room or on my desk

If you are a heavy user stay with your 90/95% limit I would suggest.

 

[SpAwN_BG]

When I had a 15 Pro (battery life wasn’t great) I started using the 80% charge limit, but because of the less than ideal battery life I was charging it multiple times a day back up to 80% from around 35-40%

Each time it’s plugged in (20w charger) the charger is creating heat cycles which is bad for battery health.

Battery health started to drop off at 40 cycles, 99% then 98% by about 48 cycles and so on.

I stopped with the constant plugging in back up to 80%, and let the battery charge higher reducing the need for multiple charges through the day.

Apple later introduced more charge limit options, I now use 95% limit on my 16e.

Your 15 Pro Max will have a lot better battery life than my 15 Pro had, so you may get away with the 80% limit and not needing multiple charges through the day that create the heat.

Or use 90/95% limit

Or you just can use 5W charger…
It won’t heat your phone up and you can use it as many times per day as you wish.

 

[goldmac2006]

If you are a heavy user stay with your 90/95% limit I would suggest.

Ima lower it to 90% then

If it doesn’t survive the school day on Tuesday through the last class period and to the point it’s 30% in the afternoon from full charge in the morning I’ll have to change that

 

[goldmac2006]

Neat dry run. I left it off the charger since I woke up. Recorded a walking workout for 35mins on Apple Watch, now will do an hour workout on Apple Fitness + later today.

iOS 18.5 beta 4, iPhone 15 Pro

 

[FeliApple]

Neat dry run. I left it off the charger since I woke up. Recorded a walking workout for 35mins on Apple Watch, now will do an hour workout on Apple Fitness + later today.

iOS 18.5 beta 4, iPhone 15 Pro
View attachment 2507387

About 3 hours of SOT 95%-44%, looks very low. Mobile data on? 5G? Brightness level? I think it has a lot of room for improvement. Fitness might be too heavy though.

 

[goldmac2006]

About 3 hours of SOT 95%-44%, looks very low. Mobile data on? 5G? Brightness level? I think it has a lot of room for improvement. Fitness might be too heavy though.

Ohh I forgot about that! I was on a run that day. So it’s cellular which adversely affects the battery life.

Sorry for the misunderstanding