LB1 High Performance Battery for Apple MacBook Pro Retina 15" A1398 (Late 2013 Version Only) MC976LL/A MD976 2012 95Wh 020-7469-A Battery Type: Li-Polymer; Capacity: 8440mAh/95Wh; Cells:N/A; Voltage: 11.26V Premium Grade A cells ensures peak performance and reliability. Operation time depends on the capacity of the battery, laptop settings, power consumption of equipment, and how you use it. CE-/RoHS-/FCC- Certified and Built-in circuit protection ensure both safety and stability. Live Support Mon-Fri 4am-8pm PST | Sat-Sun 8am-5pm PST | 18 Months Hassle-Free Warranty. Compatible with: Apple MacBook Pro Retina 15" A1398 MC976LL/A MD976 2012 95Wh 020-7469-A