New Upgrade 3.0 Quality: Battery for macbook air 13 inch with Japan High Performance Electric Core, 7200mAh Voltage:7.4V Capacity: 53.28Wh(Compatible with 7.6V/55Wh and 7.4V/53.28Wh) Package include: 1 x Macbook battery 1 x keyboard protective film 2 x screwdrivers 4 x helper mat 10 x replacement screws.The manufacturing standards and testing standard are the same as those of the original battery supplier. Cobalt: 99%, The higher the proportion of cobalt, the better the performance of the battery.
