HASESS A1370 A1375 Battery Compatible with MacBook Air 11 Inch Battery Replacement Laptop Battery for MacBook Air Battery with 2 Screwdrivers - 12 Months Warranty [6-Cell 5000mAh/35Wh] Compatible Models: Apple Macbook Air 11 Inch A1370(Only for Late 2010 Version), A1375, MC505, MC505LL/A, MC506LL/A, MC505LZ/A, MC506, MC506J/A, MC506LLA, MC507LL/A Battery Type: Li-Polymer; Capacity: 5000mAh/35Wh; Cells: 6-cell; Voltage: 7.3V Safe Battery: CE-/FCC-/RoHS Certificates are tested by reputable, qualified and accredited testing laboratories, ensures superior performance, quality and safety Battery Operation Tme: About 2.5-3 hour. Actual operation time will depend on how much electricity is required by the device and how you use it. Warranty: 24 x 7 email support, 12-month hassle-free warranty.