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I’m pretty sure they’re rated for 1000 cycles. Idk if that’s good or bad. Or what’s expected to happen when it’s beyond that.



1000 cycles is when it’s expected to drop to ~80% of original capacity. Still plenty of use left after that.


You can check the rated cycle counts for most Macbooks on the following Apple Support page:

https://support.apple.com/en-us/102888

Most recent Macbooks should last for 1000 full cycles. Though I'm pretty sure you can brick your battery quickly by keeping it at 100% charge all the time or if you use it in a very hot environment.




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