Comment by rfwhyte
9 hours ago
You can very easily replace the battery yourself for less than $100 USD too if it ever becomes enough of an issue that you feel you actually need to do something about it. My M1 Max is at about 88% battery health, but it still gets 4X-6X longer on battery (At full performance too boot) compared to my old PoS Razer laptop, so I likely won't be replacing my battery any time soon.
I bought almost brand new top case with battery twice by now for 50 USD on ebay. For M1 Air, but can't imagine Pro would be much more expensive, especially because keyboard is replaceable in Pro. Takes an hour to replace everything.