An aftermarket replacement battery compatible with a MacBook Air 13" laptop.
Replace a 4540 mAh battery compatible with MacBook Pro 13" Retina Function Keys Late 2016 to 2017 A1708 model laptops. 54.5 Watt Hours (Wh). 11.4 Volts (V).
Replace a 6670 mAh battery compatible with MacBook Pro 15" Retina Late 2016 to 2017 A1707 model laptops. 76 Watt Hours (Wh). 11.4 Volts (V).