LB1 High Performance 5200mAh Replacement Battery for Apple A1370 A1406 A1465 A1495 [Mid 2011 - Early 2015] Macbook Air 11" Battery Type: Li-Polymer; Capacity: 5200mAh/38Wh; Cells: 6; Voltage: 7.3V 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 A1370 A1406 A1465 A1495 [Mid 2011 - Early 2015] Macbook Air 11"