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Leyf

macrumors member
Original poster
Aug 16, 2022
31
24
On a M2 Pro MacBook Pro, does the 96W charger "drain" the battery health faster than a 67W charger?
I'm sorry if this question has been asked multiple times before, I couldn't find a definitive answer online.

Thank you!
 
The faster the charger, and the faster a battery degrades. I find the 67w to be concerningly fast already.

Not sure why I’d need the 96w for my 14”. Maybe if I’m in a hurry, but then again, that would be my fault for not planning ahead.
 
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In theory yes, because battery health tends to degrade when charging produces heat. But given the size and volume of the Macbook chassis, excess heat while charging shouldn't be a problem.
 
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The faster the charger, and the faster a battery degrades.

Just in case anyone takes this as applicable to all situations....in general any device will only draw as much current as it wants. You can't force electricity into it faster by using a higher wattage charger. Charging with a higher wattage charger will not cause it to take any more current than its nominal charger.

The M2 MBA and the 14" M1 and M2 MBP are unusual in that they are designed to work with two different wattage chargers (30 and 67 for the MBA, 67 and 96 for the MBP) so they will charge at a faster rate with the higher wattage charger.

So yes the OP's 14" MBP the 96W charger will in theory lose battery health more than the 67W.
 
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I'll cancel my order for the 96W charger then. Thank you all!
 
It's like putting bread into a toaster and cranking it to 11.

Actually, that's a false analogy. Apple's chargers can adjust the wattage being delivered to the computer as needed. In situations where optimized charging is enabled, this is done automatically. So regardless of whether the adapter is capable of putting out 60 or 96W, it might only be providing 25-30W to the laptop, if not dropping all the way down to a maintenance charge (which keeps the battery at current level, usually ~80%).
 
I'd buy a 3rd party USB-C charger with multiple USB-C & USB-A ports so you only carry 1 charger with 1 plug to concurrently charge multiple devices

200w-usb-c-6-port-gan-charger-charging-stations-satechi-556909_1024x.jpg



 
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