For travel or backup, choose an extra rechargeable battery for your black, 13-inch Mac Book. This 55-watt rechargeable lithium polymer battery is compatible only with the black, 13-inch Mac Book Features Product Type: Li-Polymer Capacity: 5400m Ah
Colour: Black Volt: 10.8V Weight: 525g Dimensions: 210.90 x 77.20 x 14.90mm