Battery Usage on New iPhone 15 Pro Max

turana176 wrote:

It was bought in Apple store Dallas

Everywhere is stated that iPhones come to 10% in 1-1.5 year, not 6 months

It is not stated “Everywhere”. Give us one valid example where it says “everywhere”. And February to November is 9 months, not 6 months. The only figure that Apple gives is that it will stay above 80% for 500 full charge cycles. As you have gone through over half 0f 500 you should be below 90%, and you are above 90%.

The only other claim that is made informally (but not by Apple) is that it will stay above 80% for 1 1/2 to 2 years. But this is based on usage; heavier usage means less battery life.

The absolute best way to get maximum use on a charge, as well as slow the decline of battery capacity long term is to enable Optimized Battery Charging (Settings/Battery/Battery Health) and charge the device overnight, every night. The battery will fast charge to 80%, then pause. During the nighttime pause the phone will use mains power instead of battery power, allowing the battery to “rest”, and thus reducing the need to charge the battery quite as often. The phone will resume charging to reach 100% when you are ready to use your phone; it will “learn” your usage pattern. If you enable iCloud Backup (Settings/[your name]/iCloud - iCloud Backup) the phone will back up overnight also, assuring that you can never lose more than the current day’s updates. Here's more information→About Optimized Battery Charging on your iPhone - Apple Support

turana176 wrote:

Hi. I have a problem with battery usage. I bought a brand new iPhone 15 Pro Max in Apple Store with 100% battery usage in February 2024. Now I have only 91%!!! How can this happen?? Please Help

Edited to remove massive brain glitch.

your battery health is completely normal if it was actually new. On average, battery health will decline about 1% per month of use.

As you have an iPhone 15, what is your cycle count? iPhones will lose about 1% for every 25 full charge cycles. Another less precise rule of thumb is 1% per month, and, as it has been 9 months since February that one aligns perfectly.

KiltedTim wrote:

Um… no. that model was discontinued in October of 2023. Apple stopped selling them.

Where, EXACTLY, did you buy it?

The 15 Pro Max was discontinued in September, 2024 according to MacTracker.

By the way, your battery health is completely normal if it was actually new. On average, battery health will decline about 1% per month of use.

turana176 wrote:

It is not stated “Everywhere”. Give us one valid example where it says “everywhere”. - when just Search Battery Health on iPhone during a year, it gives you a result 5-6%. My friends who have 14 Pro/ Pro max have same result 91-92% but they use their phones about 2 years. How come it same as mine starting end of Feb-March 2024? :-(

I have never seen that claim from any credible source. And some phones come with batteries that exceed the minimum 500 cycle specification. Some people are lucky. How many cycles do those people have? I’ll bet it is much fewer than your 258, which is very high.

As you have gone through over half 0f 500 you should be below 90%, and you are above 90% - thank you….

The absolute best way to get maximum use on a charge, as well as slow the decline of battery capacity long term is to enable Optimized Battery Charging (Settings/Battery/Battery Health) and charge the device overnight, every night - I did this all the time, I even used Max limit 80% to get battery long live, but now it’s dropping down crazy, I need to charge my phone 2-3 times per day…. I also dont have any screen time apps etc turned on, I removed all to keep long battery health and what I am seeing now frustrating me :-(

If you enable iCloud Backup (Settings/[your name]/iCloud - iCloud Backup) the phone will back up overnight also, assuring that you can never lose more than the current day’s updates - no, I never use iCloud

The I truly hope you back up up to your computer regularly, because with no iCloud syncing or backup when your phone drops in a toilet or gets thrown under a bus, or any other disaster, all of your saved content, photos, contacts, will be lost.

Gaaah! You’re right. My bad… Seems I’ve jumped ahead an entire year…. It’s been en exceptionally long week.

258/25=10.32%. so your iPhone should actually be at 89%. Your phone is doing fine!