iPhone 6(S)(+) Maximum Capacity In Battery --> Battery Health, Drops Dramatically

EDLIU

macrumors regular
Original poster
Oct 20, 2015
136
1
I have an old iPhone 6 Plus(iOS 12.3.2) that I seldom use. The "Maximum Capacity" in Battery --> Battery Health, drops dramatically from 95% to 91% then to 90% recently.

Why is this happening? Is there any problem with my iPhone's battery?

Thanks.
 

tonybarnaby

macrumors 68000
Dec 3, 2017
1,660
1,140
The battery is around $60. I'd assume the phone is worth $200 or less. If you don't use it much I'd let it go.
 

now i see it

macrumors 601
Jan 2, 2002
4,038
8,027
Ignore it.
When you NOTICE that the phone doesn't last very long compared to how it used to, then take a peek at it. Ignore it until it hits 80%. Then you can consider a battery replacement
 
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