New iPhone 18 battery draining quickly

Yes, some extra battery drain can be normal during the first few days with a new iPhone. The phone may still be syncing iCloud, indexing photos, restoring apps, and completing background setup.

Check Settings > Battery to see what is consuming the most power. Also install the latest iOS update, restart the phone, and check whether Photos or iCloud is still syncing.

If the battery is still draining quickly after about a week with light use, contact Apple Support and ask them to run a battery diagnostic.

You may also find this NexPloreInfo guide useful: iPhone 18 Pro Review, Price & Specs:

[Edited by Moderator]

See especially “If battery life is less than expected after an update“ here. You did just perform a major update.

If the battery in your iPhone or iPad drains too quickly - Apple Support

Maybe you have an 80% or 90% charge limit? Take the limit off.

iphones burn probably 40-50% battery in a day without any "use" by you.

Thank you. I had read through those suggestions and when I went to "Battery" it says I used 38% today rather than my average of 31% which doesn't sound like much so I don't understand why my battery is down to 19% by 6pm. Guess I will be making a trip in to the Apple Store tomorrow.

Hi there,

I am not sure who else is experiencing this but I got my new iPhone 18 pro today and setup as normal.

by the time it was all setup my phone was on 15% so I decided to charge and the phone charged 91%. But in the space of 1hr it went from 92 to 61%

is that very normal for a new phone to do that and if not please can u advice me on right steps .

many thanks

Inayah