iPhone 13 Pro Is this normal?

[super chimp]

My iPhone 13 Pro took roughly four months to drop from 83% battery to 82%, and the same again to drop from 82% to 81%. Yet it’s only taken roughly ten days to drop from 81% to 80%, and I wondered if that was normal?

 

[MarkX]

Yes it's normal. Battery life isn't linear.

 

[super chimp]

Yes it's normal. Battery life isn't linear.

Is it likely to now start haemorrhaging battery life?

 

[Reverend Benny]

Is it likely to now start haemorrhaging battery life?

Or it could just be that an update to the BMS and/or battery calibration has been done. My 13 pro went down to 86 fairly fast and stayed there for ages, then went down to 84 and stayed there for long as well.
My 13 pro still had good batterylife on iOS 18.4 before I swapped to a 16 Pro.

 

[super chimp]

Or it could just be that an update to the BMS and/or battery calibration has been done. My 13 pro went down to 86 fairly fast and stayed there for ages, then went down to 84 and stayed there for long as well.
My 13 pro still had good batterylife on iOS 18.4 before I swapped to a 16 Pro.

So it could be something related to adjustments in the iOS 18.6 update then?

 

[maerz001]

Can u give a proper headline. Thanks

 

[MarkX]

Is it likely to now start haemorrhaging battery life?

Unlikely. Have a search on here, there are literally hundred of posts on here with people overly concerned with their battery life.

The fact is a battery doesn't have an infinite life, it will age and degrade over time and with use. Just use your phone and don't worry about it.

 

[Andeddu]

You need a battery service. My 13 was at 87% 2 weeks ago so I got it replaced at the Apple Store.