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Battery Advantages: Over 1000+ recharge cycles; All products are certified by CE, FCC, RoHS, and UL for safety. Features an improved circuit board with multiple command chip control for stable charging and discharging. Contains over-charger and over-discharger protection for efficient charging and low power consumption. Compatible Laptop Models: Designed for MacBook Pro 14 inch A2442 models, including battery part numbers MKGR3LL/A, MKGP3LL/A, MKGT3LL/A, and MKGQ3LL/A. Specification: Battery Model A2519. Capacity: 6068mAh / 69.6Wh. Voltage: 11.47V. Battery Type: Li-Polymer; 100% brand new. Compatible Part Number: Fits A2519 for MacBook Pro 14 inch A2442 (2021), EMC 3650/8102. Easy Installation: A direct replacement battery designed specifically for MacBook Pro 14-inch models, ensuring seamless compatibility and a straightforward installation process. High Performance Upgrade: An upgraded high-performance battery delivers reliable power output with a 69.6Wh capacity for extended usage time and enhanced productivity