iPhone 15 battery health dropped in one month of usage

Bxhowell wrote:

This is inaccurate. Please explain how my family purchased 4 iPhones the same day, and I’m the only one with the pro max and it has degraded to 98% after only 50 charging cycles. Meanwhile, everyone else in my family has basic iPhone 15’s and they all show 100% life after 100 charges.

So you have different phones than everyone else in the family. Also, you most like aren't using exactly the same apps in exactly the same places.

2% drop after fifty cycles means you’re phone battery will hit 80% in well under 500 charging cycles. The pro max has a bigger battery and should last longer than the basic iPhone 15. I’m not talking day to day, I’m talking about time intervals between needing to replace the battery

You're assuming that the degradation will be linear. It's not.

Well, your battery is doing better than average so far. Congrats on that.

On average.....you can expect a 1% decline for every 25 charge cycles.

68 divided by 25 = 2.7%, so I would expect your battery to be in the 97-98% range at this time.

Lucky you.

StrafoRKopuK wrote:

Batteries are chemical products. They easily effected by environmental conditions. Apple guarantees that the device will not decrease more than %80 of battery health in 2 years. So if it ever decreased below %80 in 2 years at that point it is not normal. At that situation, the battery change made by apple. At ideal conditions iphone 15 should remain 80 percent of battery at cycles of 1000. But it is not guaranteed.

Apple doesn't warranty the battery for more than one year unless you buy AppleCare. If the battery drops below 80% in one year, they will replace it for free. But, without AppleCare, after the first year, the user has to pay for the replacement.

My iPhone 15 with 68 charge cycles has reached battery health 99% and I got it on May 1.

You do know that the Battery Health will normally decline about 1% for every 25 charge cycles, correct?

Your battery has had 68 charge cycles, so 68 divided by 25 = 2.7%.

So, it would be normal to expect that your Battery Health would be in the 97 to 98% range at this time. You report that it is at 99%.

Your battery is doing significantly better than average. If it keeps up at this rate, you might consider sending flowers to Apple for your very good luck with the battery.

I use 15 plus for 2 months plus now my battery health is 99%. I hate it when this happened cause I don’t use this phone regularly and i only charge it one in two or three days! I guess it’s just the same if I happen to use it regularly and charge it everyday maybe the time is half of what mine is. Also this is fine compared to my experience with 14 plus! In a year my battery health drops to 85%!

same here. 10% drop in Battery health in 8 months is massive. At the same time, my iPhone 14 dropped just 2% to the same usage. There is something wrong with the iPhone 15 Pro chip or battery. It has heating issues and the battery health drain is massive.

sazal420 wrote:

I bought 28 December 2023 and now 57 cycle and 96% Battery Health....

I Dont know what is my fault.....but day by day it is dropping

Nothing is wrong therefore, you are not at fault.

I am also facing the same issue I bought iPhone 15plus this February itself and today I checked its battery heath which is dropped by 1% and now its just 99% left

this is just pathetic after spending so much of money this is what the result is. This is really a cheating to their loyal customers

Hi! I have an iPhone 15 for almost 5 months (Bought on December 10) and my battery health dropped at 97%. I m so worried because I don’t think it’s normal to drain like that when I have my 80% limit too and rarely charged at 90-100% (happened 4-5 times at the begging). I charge my phone when is 18-19% and I have 172 cycle count. If there is someone to help me with advice, thanks!🙏🏻

I'm using iPhone 15 since September 2023 after 6 month my battery health decreased to 99% which was normal as usual, after that my battery health is decreasing very fast and now on 16 of may my battery health is 89% so there might be serious battery issues and apple not supporting me.

Nooo bruh my friend purchased iphone 13 his battery health dropped from 100 to 99 after three and half month i purshased my iphone 15 april 28 2024 now my battery health is 98 after 52 cycles what is this apple ???

jenish18 wrote:

Nooo bruh my friend purchased iphone 13 his battery health dropped from 100 to 99 after three and half month i purshased my iphone 15 april 28 2024 now my battery health is 98 after 52 cycles what is this apple ???

Do I need to point out that an iPhone 13 and an iPhone 15 are different devices with different chips?

I have Iphone 15. This is not my first iphone. I bought it on 30 december on my birthday. And now My iphone battery health is 95%. Only 1% battery health drain in first 3 months and after that every week My iphone is draining upto 1% battery health. Please help me. I am a middle class child. I can’t afford to sell and buy a new one. Please Apple help me or anyone know the solution or why this problem is occuring please tell me.

I have purchased october 2023 iphone 15, my cycle count is currently 265. and my maximum capacity is 93%. 10 days before cycle count was 246 and my maximum capacity 96%. my maximum capacity is decreasing very fast. and need solution as its the latest version phone and still facing this major issue.and i have people surrounding me also facing the same issue.

This is ridiculous because I got my iPhone 15 in October 2023 already at 89% cycle count 327& I don’t have social media mostly use safari …I’ve had my iPhone 11 that I gave to my daughter for 5 years battery health percentage 77% …