SOLVED: Battery of ifixit for MacBook Pro Retina 2014 A1398 Service Battery! - MacBook Pro 15" Retina Display Mid 2014
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Amazon.com: iFixit A1398 A1618 Battery for MacBook Pro 15" Retina (Mid 2015) - Repair Kit : Electronics
MacBook Pro 15" (2018) on 185 charge cycles already down to 73% battery capacity and "Service recommended" | MacRumors Forums
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