iPhone Battery Health at 83% - When do I replace it?

prazgeorge wrote:

My iPhone Xs battery health is 81%. Do i replace it now?

You can contact Apple and have them run a diagnostic. Their tests are more accurate than the indicator on the phone. It's possible that their tests will show that it's 80% and/or they may be willing to do it at 81%. I had mine replaced at 81% because I was also starting to see random shutdowns and they took that into consideration.

i have the same issue: my "battery health" has read 81% for at least the last nine months. (that is when i started checking it, because that is when my phone started not holding a charge for a full day.) my phone won't show me the "cycle count".

the other day, i finally researched and bought the "coconutbattery" app, and ran a test on my phone through my macbook:

battery health = 77%

cycle count = 699

(my battery is rated good for 500)

to be fair, i haven't taken the phone in and asked for a new battery: maybe the tech would take one look, and pop a new one in right away.

but it would be nice to have an official "sub 80%" reading from the phone, so i know that i won't get denied if i take it in.

at the very least, the metrics apple is using to calc "battery health" on this phone are not working, and at worst, it is very easy to get ****** and paranoid.

and it is not a "percentage number" issue: my phone is dying at an irritating rate: i will often find it dead in my pocket, at the end of my work day, when it is supposed to be sounding the alarm to remind me to go home.

i work in construction, and my phone is currently my only easy access to a clock.

so it's a pain in the ***.

not really an "81%: still ok" situation.

MAKRAHIM wrote:

I’m on iPhone 13 Pro Max battery life is 81%

how much longer my phone is good for

and replace the battery for now

and wait for an iPhone that has bigger upgrade

some tips please

rahim from canada

Your battery probably needs to be replaced. In the U.S., it would cost your $89 dollars. It's probably similar in Canada:

iPhone Battery Repair & Replacement - Apple Support

Unless you're planning on getting a new iPhone with in the next couple of months, I'd say it's worth replacing the battery.

Iphone battery 90% and cycles of charging 935 times. Is my battery original and good conditions?

That is amazing. Your battery may be a one of a kind.

Send flowers to Apple.

There is not a point where you must replace your battery (unless of course it is bulging), if it is 83% but still lasts you how long you need it to it is fine. Apple recommend replacement under 80%, but it isn’t necessary.

iwmp wrote:

I've always wondered why this is the case; why wouldn't apple want to replace the battery over 80%? Surely if the customer doesn't find it lasts long enough especially on smaller models like the 12 mini or SE.. And it is extra business for them, no?

Probably because replacing a battery that didn't really need replacing wouldn't end in a good customer experience. It probably wouldn't solve whatever problem the customer thinks they have (lots of people think they have a battery problem when they don't). It also probably would be cost-effective. I suspect Apple doesn't make a lot of money on replacing batteries between the cost of the battery, the labor, and the disposition of the used battery.

Apple will replace a battery that has more than 80% capacity if diagnostics show that there is something else wrong with the battery. I had one replaced at about 83%. The phone was shutting down suddenly. Apple ran diagnostics and decided the solution was a new battery.

But, as Bob said, only Apple would really be able to answer that.

Original batteries have a much longer life than non-original batteries, and opening and closing the mobile phone may cause other failures and reduce its efficiency.

So it is better to continue with the same battery until 78% and if you need to charge, use a power bank

How many cycles it has?

There is no need to replace battery if you are ok with it. Batteries stabilize around 80% health mark so if all is good it won't go down much. My wife still uses Iphone 8 with 78% battery and no complaints just needs charger more often but it is fully usable and no much difference how it was when new. Of course iOS warns that battery should be replaced and that is all.

anorton wrote:

but it would be nice to have an official "sub 80%" reading from the phone, so i know that i won't get denied if i take it in.

Apple can run diagnostics remotely. While it is certainly common that capacity drains more slowly later in the battery's life than it did early on, there may also be something else wrong with your battery (or phone). Contact Apple and see what they tell you.

The last battery I had replaced showed as 81% on the phone but I was also experiencing sudden, random shutdowns.

Genius Bar Reservation and Apple Support Options - Apple

If you find it isn't lasting you long enough especially, you should replace the battery now

Apple will not replace the battery unless it tests out as defective or is under 80% Maximum Capacity.

Sounds really good. Could be 80% after 500 cycles.

You are worrying needlessly about the battery. Remember, it is just a battery. It will decline.

Replace the battery when Battery Health is down to 80%

How many cycles? I got only 1% drop after 220 cycles on IPhone 15 Pro Max

Yes it is rated to be 80% after 800cycles.

I have iphone 15 pro max. I first used it in january 2024. Now I have 89% battery health and 326 cycles. Its really bad in my opinion. It's not even a one year and Its almost at 80%