Replacement battery fits 7 Apple models, including MacBook. Specifications: 6050mAh, 11.47V, Li-Polymer. Compatible with: MacBook Pro 14 2021, A2442, EMC3650, MKGR3LL/A, MKGP3LL/A, MKGT3LL/A and 1 more compatible models. Replaces: Apple A2519, Apple 080-333-4000. Apple replacement battery designed for Notebook/Laptop devices. A direct drop-in replacement for the original battery.