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I decided not to use magsafe and have been charging wired on a low watt charger... since I charge overnight and don't really need fast charging. I guess that experiment bought me an extra 45 cycles lol.
Question for you ... just this week I upgraded to an iPhone 15 (from an iPhone SE 2020). When I spoke with an Apple Support rep, I asked about using the original 5W charger from that other phone. They recommended only using the Apple 20W charger because supposedly lower watt chargers can cause batteries to get hotter than normal (I purchased a 20 watt charger so already have it).

I also have a 20W fast charger (multi port fast charger) so am wondering what is really the best wattage to use when charging. Sometimes I connect it to my Mac but want to implement recommended charging since it's new.
 
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15 Pro. Had it since July from a carrier deal that I couldn’t refuse.
 
Iphone 15 Plus, had for one year and was still at 100% battery health in September. Since upgrading to iOS 18.x I have already dropped to 97% in the last six weeks. I guess I should have stayed on iOS 17.x.
It’s totally unrelated. Your actual percentage number can lag behind you mAh measurement. Your analytics under the Privacy menu lists your current mAh capacity as well as your starting capacity when it was new.
 
what about 80% after 1000 cycles which was promised by apple? it's more like 80% after 500 cycles. Im really disapointed
 

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my 15 Pro Max has finally gone down to 99%

bought on launch day and limited to 80% charge and usually keep it between 20-80%

Cycle Count: 169
Manufacture Date: July 2023
First Use: September 2023
Health: Normal

time to get a new phone /s
 
Question for you ... just this week I upgraded to an iPhone 15 (from an iPhone SE 2020). When I spoke with an Apple Support rep, I asked about using the original 5W charger from that other phone. They recommended only using the Apple 20W charger because supposedly lower watt chargers can cause batteries to get hotter than normal (I purchased a 20 watt charger so already have it).

I also have a 20W fast charger (multi port fast charger) so am wondering what is really the best wattage to use when charging. Sometimes I connect it to my Mac but want to implement recommended charging since it's new.
That was a bold faced lie by them lol. the 5W charger will not make your phone hot.... Less wattage will not make your phone hotter its common sense.
 
That was a bold faced lie by them lol. the 5W charger will not make your phone hot.... Less wattage will not make your phone hotter its common sense.
I was thinking that as well, but a counter-point may be that charging with 5W takes longer, so the battery gets hot for a longer amount of time for each percentage of charge. I don't really know if that's really the case - it seems as likely that 2oW charging warms the battery more for a shorter period of time - but I wouldn't be surprised to learn that charging methods are a wash when it comes to heating the battery pack during charging.

Personally I'm generally charging overnight while I sleep, so I am, in fact, charging with an old 5W charger and USB-A to USB-C charging cable to see if that helps slow down max capacity loss over time.
 
That was a bold faced lie by them lol. the 5W charger will not make your phone hot.... Less wattage will not make your phone hotter its common sense.
I was thinking that as well, but a counter-point may be that charging with 5W takes longer, so the battery gets hot for a longer amount of time for each percentage of charge. I don't really know if that's really the case - it seems as likely that 2oW charging warms the battery more for a shorter period of time - but I wouldn't be surprised to learn that charging methods are a wash when it comes to heating the battery pack during charging.

Personally I'm generally charging overnight while I sleep, so I am, in fact, charging with an old 5W charger and USB-A to USB-C charging cable to see if that helps slow down max capacity loss over time.

I questioned the response because I was really surprised. Then the rep said it's because the phone will try to pull more power from the charger than the charger is capable of giving which is why the battery would get hotter. So....🤷‍♀️

However, I used the charger in my SUV – and that one isn't overly powerful by any means. No hot battery so I'm kind of doubting a 5 watt charger would really be an issue.
 
I questioned the response because I was really surprised. Then the rep said it's because the phone will try to pull more power from the charger than the charger is capable of giving which is why the battery would get hotter. So....🤷‍♀️
Yeah, that was totally wrong; it doesn't work that way. Honestly if people working in Apple Stores don't really know what they are talking about they shouldn't guess. (To be fair perhaps somebody told that person the wrong information.)

The phone will only draw what the charger can deliver - 5 watts in this case.
 
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Yeah, that was totally wrong; it doesn't work that way. Honestly if people working in Apple Stores don't really know what they are talking about they shouldn't guess. (To be fair perhaps somebody told that person the wrong information.)

The phone will only draw what the charger can deliver - 5 watts in this case.
The lady was from Apple Support via phone. She had me wait and asked another tech person because she wasn't sure herself. My guess is they *might* have a database of general answers to questions and perhaps mine was one that wasn't in their database.
 
my 15 Pro Max has finally gone down to 99%

bought on launch day and limited to 80% charge and usually keep it between 20-80%

Cycle Count: 169
Manufacture Date: July 2023
First Use: September 2023
Health: Normal

time to get a new phone /s
Ouch. I have 184 cycles and am at 99% but haven't limited charging at all.

Folks: use the phone and replace the battery when needed. Limiting the charge only makes your experience worse since you need to charge it more frequently. Batteries are consumable.
 
Folks: use the phone and replace the battery when needed. Limiting the charge only makes your experience worse since you need to charge it more frequently. Batteries are consumable.

This is not universal; I don't need to. Right now I charge to 85% limit and it gets me through a day - there is no need for me to charge to 100%.
 
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iPhone 15 Pro Max
Manufactured: August 2023
First Use: September 2023

Health: Normal
Maximum Capacity: 91%
Cycle Count: 270

Charged mostly every night from about 35% with Optimized charging (to 100% - not 80%)

Can't say i've noticed the degredation in the battery - but thems the numbers.
 
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Ouch. I have 184 cycles and am at 99% but haven't limited charging at all.

Folks: use the phone and replace the battery when needed. Limiting the charge only makes your experience worse since you need to charge it more frequently. Batteries are consumable.
The battery life on this phone is insane for me even capped to 80% but of course if I need extra battery I'll charge it more.
 
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The battery life on this phone is insane for me even capped to 80% but of course if I need extra battery I'll charge it more.
Maybe I need to try it out then. Mostly use my iPad when home anyways.
 
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