Description: Capacity: 54.4Wh;Voltage: 7.4V / 7.6V;Cells technology: Li-Polymer;Warranty: 12 months;Cells manufacturer: Green Cell;Colour: Black;Overdischarge protection: Yes;Overcharge protection: Yes;The possibility of return: Up to 30 days;Product code: AP14WX;Manufacturer: Green Cell;Model: MacBook Air 13";Work time: od 2 do 13h;Series: Polymer ;Compatibility list: ;Compatible with following battery models : ;Compatible with following devices :