Battery health and fast drain issue iphone 15

You are NOT speaking with Apple Support here. This is a user to user only forum, which Apple neither participates nor reads for user feedback. While your battery is health is a bit lower than normal after a little over 300 Cycles, it's not that far off normal. After the number of cycles your phone has undergone, it would be expected your health would be in the 93% - 94% range. A few points in either direction is not cause for concern, nor a warranty issue. Apple will replace an iPhone battery under warranty in the first 12 months IF the health of the battery declines to 80% or less. You're a long way from that and since you've owned your phone for 11 months, the chances of it dipping to 80% in the next few weeks are not even remotely likely.

Battery health decline is normal and unstoppable. Batteries are consumable parts and you cannot stop Battery Health decline. And the decline is NOT linear, meaning it can remain steady for a while, then drop a few points quickly.

You might want to follow the guidance in this link --> Batteries - Maximizing Performance - Apple

Other things you should be doing:

1. NEVER EVER let the phone fully discharge - it can prematurely age your battery.
2. Avoid letting the battery go below 20% - same as above
3. DO, plug your phone in to charge when you go to bed at night and leave it plugged in ALL night, EVERY night with Optimized Battery Charging turned on.
4. When your battery does eventually dip to 80% some time in the future, that's when you pay to have the battery replaced. But you're a long way from that.

If you still want Apple to test your phone, you can schedule an appointment at your Apple Store Genius Bar, but you'll likely be told there is nothing wrong with your battery and you'll be wasting your time.

You have posted to a user-to-user site. We are all users here......just like you.

Apple is not here. They will not see your post or reply.

You should make an appointment at the Apple Store / Genius Bar or an authorized Apple service shop to have the battery in your iPhone checked and tested.

You can find a list of authorized shops in your area by using the link just below:

Find Locations

As far as options, it is up to Apple to decide on any actions that may need to be taken regarding the battery in your iPhone.

shashikant275 wrote:

Support team was neglected the issue by saying this is a normal issue

Then you have your answer. When the battery drops below 80%, it will be time for a replacement. With an AppleCare plan the cost is $0, otherwise it would be $99, as seen in the information provided here:

iPhone Battery Replacement - Apple Support

We have no idea about the history of the device and Apple does not know either. As lobsterghost1 pointed out, there are specific things that will degrade a battery faster than normal that have nothing to do with app usage. There are millions of devices out there and have seen no massive failure rate on the battery for that device that would point to a defect. If that was the case, you would receive a recall notice or service compensation program that would be available to you.

shashikant275 wrote:

Support team was neglected the issue by saying this is a normal issue

Did you read my post above? It told you you don't really have an issue, so they didn't neglect the issue because you don't have one.