How much does it cost to replace the BIOS battery?


i'm looking how costs replace bios battery on macbook pro. no longer keep date , time out being plunged in. if unplugged loses every thing.

lot of work replace on own?
 

that's pc thing. macs don't use bios, use efi. date/time kept main battery. if you're laptop mid-2012 or later (post-retina), there no user serviceable parts inside. can't replace battery, ssd, or ram. might welded shut user perspective.
 


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