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newdev9

macrumors newbie
Original poster
Feb 15, 2023
19
10
I’ve owned a number of iPhones and I always seem to have bad luck with them in terms of battery. I’m not sure if it’s me or the phones. I’ll explain.

I know it’s controversial but I tend to peek at battery health in the settings. I know, I know: it varies, it’s not life or death, it’s not some life altering number or something that will prevent my phone from working. But still, I check it.

I have a 17 pro I purchased new in September one day after the launch date. Traded in my 14 pro which I really didn’t like. When I purchased my 14 pro brand new from T-Mobile my battery health went from 100 to 86 in 6 months. Yet it was considered “normal”. I don’t abuse my phones, game on them with the exception of the occasional light games like baseball or football which are non graphic intensive and don’t drain the battery.

I kept my 14 pro for a little over two years before I upgraded to my 17 pro. I was looking forward to some big upgrades including the vapor cooling and larger battery. Currently I’m at 83 charge cycles and I’m already at 98% health. I dropped the two percent in just the past week alone. No extreme heat or cold, light gaming, normal use. I mainly use instagram, texts, mail and calling. I hardly FaceTime. I don’t use it as heavily as my friends use theirs. I don’t plug in my phone while using it, I don’t use any third party cables and I don’t let my phone go to zero. I set my charge levels to stop at 80%. Yet here I am at 98% after just a few months and less than 100 cycles. The friends I mentioned above who have the Air and Pros who have well over 100 cycles and they’re at 100%. I don’t get it.

Again, I know my phone is fully functional and this number is considered arbitrary. But I think dropping two percent in less than a week is pretty weird. For reference I own an Apple Watch SE 2 that is now one year old. Purchased new in January 2025. That thing has been charged from 100 to 0 dozens of times, it’s been reset, no battery optimization, sometimes I forget to charge it or wear it and it’s laying dead on my dresser, and I’m ironically at 98% health on that. I don’t understand how a smaller battery that has seen way more charge cycles is at 98% but my 17 pro which has less than 100 cycles is at the same health in just 4 months.

What am I missing? Or is this just random?
 
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It's mostly random, and only has real meaning when below 80%. Then you can get a free replacement under Apple's warranty program.
 
It's mostly random, and only has real meaning when below 80%. Then you can get a free replacement under Apple's warranty program.
I understand the “below 80%” thing. So it’s just random that I’m below 100 cycles and dropped 2%? Nothing I can do about it? I feel like I’ll be at 90 or below by spring at this rate lol
 
I’ve owned a number of iPhones and I always seem to have bad luck with them in terms of battery. I’m not sure if it’s me or the phones. I’ll explain.

I know it’s controversial but I tend to peek at battery health in the settings. I know, I know: it varies, it’s not life or death, it’s not some life altering number or something that will prevent my phone from working. But still, I check it.

I have a 17 pro I purchased new in September one day after the launch date. Traded in my 14 pro which I really didn’t like. When I purchased my 14 pro brand new from T-Mobile my battery health went from 100 to 86 in 6 months. Yet it was considered “normal”. I don’t abuse my phones, game on them with the exception of the occasional light games like baseball or football which are non graphic intensive and don’t drain the battery.

I kept my 14 pro for a little over two years before I upgraded to my 17 pro. I was looking forward to some big upgrades including the vapor cooling and larger battery. Currently I’m at 83 charge cycles and I’m already at 98% health. I dropped the two percent in just the past week alone. No extreme heat or cold, light gaming, normal use. I mainly use instagram, texts, mail and calling. I hardly FaceTime. I don’t use it as heavily as my friends use theirs. I don’t plug in my phone while using it, I don’t use any third party cables and I don’t let my phone go to zero. I set my charge levels to stop at 80%. Yet here I am at 98% after just a few months and less than 100 cycles. The friends I mentioned above who have the Air and Pros who have well over 100 cycles and they’re at 100%. I don’t get it.

Again, I know my phone is fully functional and this number is considered arbitrary. But I think dropping two percent in less than a week is pretty weird. For reference I own an Apple Watch SE 2 that is now one year old. Purchased new in January 2025. That thing has been charged from 100 to 0 dozens of times, it’s been reset, no battery optimization, sometimes I forget to charge it or wear it and it’s laying dead on my dresser, and I’m ironically at 98% health on that. I don’t understand how a smaller battery that has seen way more charge cycles is at 98% but my 17 pro which has less than 100 cycles is at the same health in just 4 months.

What am I missing? Or is this just random?
It’s random, you probably got an iPhone that was close to the actual design capacity of the battery…this varies, even though the phone says 100% many get phones with anywhere between 101%-105%, the lower you get the quicker it will get to its actual 100% health and thus the sooner you will see a drop to under 100%, no matter what you do (charging to 80% etc…barely does anything).
You should be good.
 
I’ve owned a number of iPhones and I always seem to have bad luck with them in terms of battery. I’m not sure if it’s me or the phones. I’ll explain.

I know it’s controversial but I tend to peek at battery health in the settings. I know, I know: it varies, it’s not life or death, it’s not some life altering number or something that will prevent my phone from working. But still, I check it.

I have a 17 pro I purchased new in September one day after the launch date. Traded in my 14 pro which I really didn’t like. When I purchased my 14 pro brand new from T-Mobile my battery health went from 100 to 86 in 6 months. Yet it was considered “normal”. I don’t abuse my phones, game on them with the exception of the occasional light games like baseball or football which are non graphic intensive and don’t drain the battery.

I kept my 14 pro for a little over two years before I upgraded to my 17 pro. I was looking forward to some big upgrades including the vapor cooling and larger battery. Currently I’m at 83 charge cycles and I’m already at 98% health. I dropped the two percent in just the past week alone. No extreme heat or cold, light gaming, normal use. I mainly use instagram, texts, mail and calling. I hardly FaceTime. I don’t use it as heavily as my friends use theirs. I don’t plug in my phone while using it, I don’t use any third party cables and I don’t let my phone go to zero. I set my charge levels to stop at 80%. Yet here I am at 98% after just a few months and less than 100 cycles. The friends I mentioned above who have the Air and Pros who have well over 100 cycles and they’re at 100%. I don’t get it.

Again, I know my phone is fully functional and this number is considered arbitrary. But I think dropping two percent in less than a week is pretty weird. For reference I own an Apple Watch SE 2 that is now one year old. Purchased new in January 2025. That thing has been charged from 100 to 0 dozens of times, it’s been reset, no battery optimization, sometimes I forget to charge it or wear it and it’s laying dead on my dresser, and I’m ironically at 98% health on that. I don’t understand how a smaller battery that has seen way more charge cycles is at 98% but my 17 pro which has less than 100 cycles is at the same health in just 4 months.

What am I missing? Or is this just random?
I had an iPhone Pro (I think it was a 13 Pro) that dropped to 97% shortly after I got it (new at launch). I watched the battery percentage frequently for awhile and then stopped worrying about it. When I traded it in at 1 year it was still at 97%.
 
After reading the original post in this thread, I checked the battery health on my Air, which I got on launch, and I currently have 88 charge cycles with 100% battery health.

I’m noticing a higher number regarding charge cycles compared to my 17 Pro which only has 5 charge cycles in a month of use (I got my 17 Pro at the beginning of December).

YMMV?
 
Battery health is largely just luck of the draw, and the reported percentages are estimates. Unless I actually notice a decline during regular use, I try to only look at the battery health maybe once or twice a year. Otherwise, you get fixated on every 1% drop which really doesn't mean anything.

I find it somewhat ironic that people tend to worry more about their battery health, on a device that they're going to replace in a few years, than they do about their actual physical health. People worry about their battery health more than their cholesterol numbers or blood pressure!
 
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