MacBook Pro battery structure

I am curious. Since my MacBook Pro heats up when charging, but the temp sensors show 8 different "Power Manager Dies", does this mean that the battery has 8 cells, interlinked? If so, does it top them off one at a time, until full?


MacBook Pro 13″, macOS 11.6

Posted on May 21, 2022 9:45 AM

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1 reply

May 21, 2022 10:04 AM in response to PriscillaRenee

PriscillaRenee wrote:

I am curious. Since my MacBook Pro heats up when charging, but the temp sensors show 8 different "Power Manager Dies", does this mean that the battery has 8 cells, interlinked? If so, does it top them off one at a time, until full?


I would not try overthinking this...if you are having an issue then state what exactly that is(?)


If you are using a third party app—if in doubt or curious search the developers website or contact: Support/Help/FAQ/Known issues/compatibility/Updates


Contact a third-party vendor - Apple Support

Contact a third-party vendor - Apple Support




Yes when you are charging it is not uncommon for it to heat up, there are more than one single variable here.


Keep your Mac notebook within acceptable operating temperatures

Keep your Mac notebook within acceptable operating temperatures - Apple Support



The rule of thumb— "if you are near the mains leave it plugged in, if you need the portability then run on battery only."



The built in BHM will manage the battery charging for you—this is not an issue.


About battery health management in Mac notebooks w/ silicon

About battery health management in Mac notebooks - Apple Support



if you are writing your PhD on Lithium ion batteries in the macOS ecosystem then maybe you can say more...

About lithium-ion batteries

Batteries - Why Lithium-ion? - Apple





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MacBook Pro battery structure

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