What is ideal battery health for iPhone 15 after 6 months of usage?

You're actually ahead of the curve, your battery is doing great.

Batteries degrade over time with usage due to chemical aging, that's just how they work.

You can expect about a 1% drop per month with average use on an iPhone. This is an approximation, that is why it may be plus or minus a few percent on a month to month basis.

Apple recommends replacing it when it reaches 80%. To check your battery health, go to Settings > Battery > Battery Health.

iPhone Battery Replacement.

iPhone Battery Service - Apple Support

About Lithium Ion Batteries

iPhone battery and performance - Apple Support (IN)

Here are some tips on maximizing battery life.

Batteries - Maximizing Performance - Apple

Batteries, like people are individuals. No two people age exactly the same and batteries don’t age the same either. The exact usage, chemical makeup, storage conditions, exposure to heat and cold and about a dozen other factors mean that every battery ages differently. Battery aging is not a linear (straight line) and degrades at different rates as the chemicals in the battery age and other factors mentioned above. Apple expects your battery health to be at 80% after 24 months. If your battery health misses that expectation, contact Apple Support.

Please review the Apple Support articles on battery optimization. It contains the best  current practices for battery charging.

iPhone Battery and Performance - Apple Support

Batteries - Maximizing Performance - Apple

About the battery and performance of iPhone 11 and later - Apple Support

After 7 months of usage ive dropped to 98% and i use my phone heavily. The thing is i avoid using the phone when its under 20% and ive set it to only charge to 80%. If your phone is in that range it puts stress on the battery. I also only charge it when its at 20%

I've got a 15 PM and I'm at 99% after over a year of use. But I'm very careful about charging. I only use a 10W brick, only charge to 80%, and rarely ever let it go under 30%. Basically, I charge it once, about every day and a half, and consequently have a very low charge cycle count.

Nothing. Your battery health is normal.

The best thing you can do about battery health is stop looking at it.

I'd say you have a very good Battery Health reading! The typical Apple battery will last through 2 years of normal use. Apple suggests that you replace the battery when Battery Health reaches 80%. Check this link...

Batteries - Maximizing Performance - Apple

Batteries of iPhone 14 models and earlier are designed to retain 80% of their original capacity at 500 complete charge cycles under ideal conditions. Batteries of iPhone 15 models are designed to retain 80% of their original capacity at 1000 complete charge cycles under ideal conditions. Actual battery performance depends on a number of variables, including how iPhone is used and charged regularly.

The one‑year warranty includes service coverage for a defective battery, in addition to rights provided under local consumer laws. If it is out of warranty, Apple offers a battery service. Prices and terms may vary.

ReibMje wrote:

I have the same issue. From 96% down to 88 in just one month lol

I’ve seen that happen with malfunctioning batteries, with malfunctioning charger circuitry, and batteries subject to too much heat.

If the problem isn’t an obvious one, when it reaches 80% or below, get it looked at.

Magical indeed. I hope it continues for you!

Batteries, like people are individuals. No two people age exactly the same and batteries don’t age the same either. The exact usage, chemical makeup, storage conditions, exposure to heat and cold and about a dozen other factors mean that every battery ages differently. Battery aging is not a linear (straight line) and degrades at different rates as the chemicals in the battery age and the other factors mentioned above. Apple expects your battery health to be at 80% after 24 months. If your battery health misses that expectation, contact Apple Support.

As per the discussion, I might have a magical iphone 15 because I’m using it since four and a half month(exact 136 days) and done 157 cycle count while sometimes I was using it with charging on also and still my battery health is 100%.

This tells you that your battery was really at about 104% when the phone was new, but the Battery Health would still be displayed at 100%. Lucky you.

Soon, your battery will start to behave normally and decline around 1% for every 50 charge cycles. So, at 300 cycles, the battery will likely be at about 96-97%. Still, that's impressive.

Nothing unusual with your battery performance in this screenshot or your previous screenshot. It is working exactly as it is supposed to.

My 15 pro max is at 88% after 14 months. I charge it every night because battery gets below 30% and I won’t get very far into the next day at that level.

looking at other posts here my phone seems to be doing a normal digression of the battery.

I would say around 98 would be normal after 6 months but it depends how you use it. I babied my 15 pro max and it had 170 cycles after a year and it had 100% battery health. My 14 plus before that was down to 95% after 6 months but I didn’t really look after it. 16 pro max now 26 cycles still 100 %

Keep going and run the phone hard.

If the battery gets down to 80% in the first 12 months, you get a new battery free.

You are going to drive yourself crazy if you are looking at the Battery Health all the time.

Replace the battery when it is down to 80%, which will be 18-24 months from now.