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alcaje

macrumors newbie
Original poster
Oct 22, 2014
18
1
Hello,

Is it normal that my battery life is already badly damaged after only 356 cycles ?

In full charge 100% it only last 15-20 minutes before dying...

1681039801128.png


Thanks!
 

russell_314

macrumors 604
Feb 10, 2019
6,696
10,295
USA
It's not just cycles. So many factors like heat and how the battery was used effect it's life. Was it kept at 100% or 0% for extended periods. Also 2016 was 7 years ago. I don't know when your model was made but lithium batteries don't last forever.
 

appltech

macrumors 6502a
Apr 23, 2020
688
167
Other reasons are:
-- bad charger/psu;
-- unsieved voltage drops;
-- heat;
-- bad battery itself, common story for (not all) unauthorized service centers
 
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