iPhone 15 Plus battery health 86% after 275 cycles

The battery in the iPhone 15 Plus was designed to go up to 1,000 Charge Cycles before the Battery Health declines to 80% under ideal conditions.

That works out to an average of about 1% for every 50 Charge Cycles.

So, divide your 275 Cycles by 50 and you come up with a figure of 5.5%. Call it 5-6% to make things simple. Subtract 5-6% from 100% when new and you come up with a figure of 94-95% Battery Health if your battery is operating under ideal conditions.

At 86% Battery Health, your battery has really declined quite a bit faster than would be expected.

Why? Running high brightness and apps like TikTok that are power hogs really drag down the battery performance. Videos and gaming will drag down performance as well.

Even if you bought new old stock and you are still in Warranty, unless it gets to 80% health inside warranty period Apple will be unlikely to help you for free, and not yet.

Get a new battery when it hits 80%

I have only had 4 iphones since 2018. 6S, 7, 12, SE3. They mostly got obsolete before changing, though I dropped one at 3 yrs old and broke it.

They all stuck at around 85% health after two years, and never got any lower.

I wouldn't worry, enjoy it.

so, this is normal for my usage? it is over a year old, and I know a typical phone upgrade is recommended around the 2-year mark, I don't expect it to be like brand new, but I didn't think my usage was that heavy personally.

No one, not even Apple, recommends upgrading your iPhone every two years. That’s disinformation if you read that somewhere. Unless you have AppleCare+ extended warranty you’ll need to pay for a new battery when the battery health reaches 80%.

Apple Service and Repair for iPhone Battery - Apple Support

It will be a lot cheaper than buying a new iPhone. $99

I just looked it up and it says about every 3-4 years depending on usage. my main concern is if my phone battery is operating normally under my usage not under ideal conditions. my last iPhone (iPhone 8 plus) lasted 5 years under the same care and I find it kind of disappointing for my 15 to already be at 86% because I did expect better performance for a relatively new model (at the time of purchase)

AriannaGrace19 wrote:

I just looked it up and it says about every 3-4 years depending on usage.

Oh right, if it’s on the internet it must be true. That’s nonsense. People are keeping their iPhones for many years now. As I said, replacing the battery will be much cheaper than buying a new iPhone. There’s nothing wrong with your iPhone 15 Plus.

I was relaying information that ive read while looking up this topic as well as my own experience. i do hope to keep this phone as long as possible and i just want to be sure everything is working optimally for my usage. i do usually lose about 1-2% of battery health per month and from what ive read is pretty normal for day-to-day usage. my original question came from reading that around 86% battery health is 300-350 charge cycles and im below that and i just wanted some clarification about it, but im learning thats apparently under perfect ideal conditions not really realistic usage. thank you for your help.