Iphone 15 battery health drain after IOS 17.2.1 update

I purchased an iPhone 15 recently and the battery draining is horrible.

i have had 3 replacements but the draining still horrible.

my battery can drain up to 50% in about 2 hours with barely use of the phone.

what Apple is doing to fix this battery issues?

I found a solution for iphone 15 battery drain out issue.

I noticed “hotspot” was turned on and also “Call on other devices” post update.

1. I turned off hotspot by going to settings —— hotspot and switch toggle to off

2. settings ——— cellular——— turn off call on other devices.

in addition make sure your bluetooth is off when not in use. Make sure to turn off through settings and not just from control panel. Settings —— Bluetooth—— turn toggle to off.

this has immensely helped me with iphone battery drain issue and my iphone is holding the charge all day despite me playing games and spending lots of time on social media. Hope this helps

Most iPhones will drop to 99% in one or two months. Count your blessings that it has only dropped to 99% after 3 months.

You are not, however, using a best practice for preserving your battery; you are following some widely stated but incorrect internet memes. What you are doing actually prevents optimized charging from doing its job; if you want to micromanage charging turn off optimized charging.

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

Even I’m experiencing the same from the day I updated my ios to 17.2.1 ..the battery drain has significantly increased even though the screen time is very less and all the network related stuff are toggled off

Hello I am using iphone 15 from past 65 days, My battery capacity has dropped to 96%. Is it even normal?

My average screen on time is around 4.5 hours daily.

I do not have any games in my phone.

Please suggest some solutions.

It makes sense, except the Bluetooth, which uses no energy at all unless there is a Bluetooth device connected, and even the it uses about 10 milliwatts. And leaving it off lessens your chances of recovering the phone if it is lost.

Your watch should not use significant energy in the phone. What energy it does use isn’t from Bluetooth, it is updating the health and activity apps in near real time based on activity detected by the  Watch.

Wish I had seen your comments before I bought mine. I bought it a couple of days ago and the battery drainage is ridiculous. I have background refresh turned off and I close all apps when I’m not using it and I cannot make it a day with fairly average usage. It is not much better than my three-year-old 12 mini.

Ok so having my Apple watch ultra connected shouldn’t use much power at all correct? Also the other day it was as if my phone in Low power mode used more power than when not, very confusing.

Very helpful thanx. I usually just have my watch and airpods pro2 connected atleast 18 hrs a day and havent noticed drastic battery loss but definitely some.

thanks for the suggestion, it gave me some hope but unfortunately, after I checked my settings both those items were already turned off, so I'm a little bummed

i purchase i phone 15 2 months before my battery capacity is very low mobile not running proper

Me too. Battery is draining so fast and charging also so fast. Hopefully to release new update 😢

I bought it before 90 days my BH is 97 now in 70 cycles.

My iPhone 15 battery is been draining really quick after the iOS 17.2 update is is there anyway to fix this? It’s really annoying.