Battery requiring service after 164 cycles?
I’ve started using a 2012 MacBook Pro that hasn’t been used for a couple of years .
The original battery has only 164 cycles but is showing as “Service Battery”.
Yesterday, the maximum capacity of the batter was showing in system report as being about 2800 mAh. Today, oddly, it is showing as being a much better 4096 mAh. The message “Service Battery” is still being displayed though.
The laptop is able to work with moderate use (documents, WiFi, bluetooth, occasional Geekbench benchmarks) on battery for about 5 hours which, to me, seems to be very good.
I’m concluding that the battery warning is incorrect. The fact that the battery’s capacity has jumped from 2800 to 4096 overnight suggests that something is not being measured accurately.
I’m assuming that the long period of non use (a couple of years) has caused measurement problems - or it could have degraded the battery (which doesn’t seem to be the case).
Is there an easy way to force recalibration of the battery?
Update:
The battery stats seem to be fluctuating (up and down) in terms of the battery’s capacity. I’ve tried resetting SMC but that doesn't seem to have changed anything.
Это хороший вопрос?
1 Комментарий
Lithium-ion batteries reduce ability to hold charge over time. The battery , assuming it is the “original” battery, may be close to end of life, usually 5 years or so, regardless of cycle count.
Get coconut battery app to monitor battery.
https://coconut-flavour.com/coconutbatte...
Reset battery readings; reset SMC - system management controller, reset PRAM - parameter ram/NVRAM - non-volatable ram How to reset the SMC, PRAM and NVRAM on a Mac Laptop
Reconditioning battery as if new.
I just replaced my battery, how do I condition the new battery?
Now battery is conditioned. Plug in charger and remove as desired. Some recommend plug in charger when battery gets to about 40% charge; but, I personally do not necessarily follow the guideline.
Periodically completely charge and discharge during normal use. Some recommend once a month under daily use.
из Dale Eshelman