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involuntarheely

macrumors regular
Original poster
Jul 28, 2019
126
140
Hi all,

I have noticed an increased number of people concerned about design capacity vs current charge capacity of their macbook pros. Myself included -- my 2020 13" showed 95% after 10 cycles.
Several people with 16" have reported ~90% battery capacity after not-so-many cycles, too.
on the other hand, a 2015 13" I have is at >85% after 1074 cycles.

The question is: has there been a decrease in battery quality in more recent macbooks? It's impossible to answer this question by just looking at complaints on forums/reddit as there is a selection bias that brings only the worse batteries to the surface.

However, coconutbattery should have much more comprehensive data (perhaps not completely free of the same selection bias, but I'd assume it is reduced).
Now clearly coconutbattery collects battery data (history > open history viewer > battery 1 > compare online). but is there a more transparent/open database? (similar to geekbench) it would be interesting to check whether more recent batteries perform worse than older ones at similar stages in their life?
 
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