iPhone 8 battery problem (98% after 21 cycles/7weeks)

Eurus

macrumors newbie
Original poster
Nov 13, 2018
1
0
Max capacity of my iphone battery after 7 weeks (Date of purchase: 20 september 2018) and 21 cycles is 98%. CoconutBattery show designed capacity level at 97.3% (fully charged phone). I don't overheat my phone and follow rule 20-80 - I don't play games, use facebook etc (nothing heavy). It seems to me that the battery is discharging a little faster. Is it normal?

iOS 12.1.
 
Last edited:

C DM

macrumors Sandy Bridge
Oct 17, 2011
47,421
15,974
Max capacity of my iphone battery after 7 weeks (Date of purchase: 20 september 2018) and 21 cycles is 98%. CoconutBattery show designed capacity level at 97.3% (fully charged phone). I don't overheat my phone and follow rule 20-80 - I don't play games, use facebook etc (nothing heavy). It seems to me that the battery is discharging a little faster. Is it normal?

iOS 12.1.
Some existing threads about this kind of thing can be of some help:

https://forums.macrumors.com/threads/iphone-x-battery-53-cycles-99-64-cycles-98-within-one-week.2147883/
 

Sebby91

macrumors newbie
Nov 3, 2018
24
2
My 8 plus is having a good battery life in latest ios but I have background app refresh off some location services ... Is coconut battery the only app to check iphone ? And it s only can be done if you have a mac ? iI don ‘t have on so how can I check ?
 
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Minho

macrumors regular
Oct 4, 2017
193
45
Montreal, Canada
I wouldn't worry about it for now, and Apple isn't going to do anything about it either until the battery gets to 80%. When the battery does get to 80%, then Apple will determine if it falls under a warranty replacement or not (I believe it is 1 year).The battery will not deplete linearly so you have to give it more time to see what the trend is.

Unlike solid state electronics, batteries are chemical devices and each one is different, even if they are manufactured in volume. Making batteries is like baking, you follow the recipe but you never really know what you get until it comes out of the oven.
 
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