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Mlrollin91

macrumors G5
Nov 20, 2008
14,127
10,115
It depends on how many charge cycles you have. The battery shouldn't drop below 80% until you are at 500 cycles. It's possible your battery dropped to 82% quickly and will hang there for the next year without degrading more.
 
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Kalloud

macrumors regular
Original poster
Oct 23, 2016
145
91
It depends on how many charge cycles you have. The battery shouldn't drop below 80% until you are at 500 cycles. It's possible your battery dropped to 82% quickly and will hang there for the next year without degrading more.
On average I charge my phone 3 times every 2 days. So that should make about 315 cycles.
 

C DM

macrumors Sandy Bridge
Oct 17, 2011
51,392
19,460
Hi everyone!
I have been using my iPhone 6s for about 7 months now and my battery capacity is already at 82%.
Is that normal?
What about you? Which device are you using and how much battery capacity do you still have?
EDIT:
Here's the app that mesures the remaining battery capacity of you phone:
https://itunes.apple.com/us/app/battery-life-check-devices/id1080930585?mt=8
Unfortunately at least since iOS 10 that app and similar ones in the App Store don't really seem to be that accurate or good.
 
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Mlrollin91

macrumors G5
Nov 20, 2008
14,127
10,115
As mentioned above. Using that app is not accurate anymore. You need to use a Mac with Coconut battery or PC with iBackupbot to get an accurate number.
 

Shirasaki

macrumors P6
May 16, 2015
15,870
11,244
As mentioned above. Using that app is not accurate anymore. You need to use a Mac with Coconut battery or PC with iBackupbot to get an accurate number.
I am afraid, even the coconut battery could not give an accurate number.

For some reasons my device has 351 load cycles within less than a year and battery capacity is only 41% of designed capacity. This correlates with rapid battery drain of iOS 10.3. I am not sure.
 

Mlrollin91

macrumors G5
Nov 20, 2008
14,127
10,115
I am afraid, even the coconut battery could not give an accurate number.

For some reasons my device has 351 load cycles within less than a year and battery capacity is only 41% of designed capacity. This correlates with rapid battery drain of iOS 10.3. I am not sure.

Coconut battery is 100% accurate. It's using real time battery readings. It's even more accurate than Apple's diagnostics because they are giving you a two week average.

If you are at 41% design capacity, and 351 cycles, your battery has failed prematurely. If you have warranty, you will get a free battery replacement.
 

Shirasaki

macrumors P6
May 16, 2015
15,870
11,244
Coconut battery is 100% accurate.
However, I just notice a huge fluctuation of "maximum charge". Five minutes ago it was 41%. Now it is 71%.
Load cycle does not change though, so I believe the 351 load cycle is correct.
 

Mlrollin91

macrumors G5
Nov 20, 2008
14,127
10,115
However, I just notice a huge fluctuation of "maximum charge". Five minutes ago it was 41%. Now it is 71%.
Load cycle does not change though, so I believe the 351 load cycle is correct.

When a battery is under 80% it becomes unstable. You can see it go from 5% to 55% to 30% capacity in 30 seconds. Very normal behavior. It's a depleted battery.
 
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