Black Meet the power bank that will keep all your portable devices alive. This massive lithium polymer battery, housed in a stylish aluminum shell, holds enough juice to charge a Macbook Pro up to four times! Charge the power bank with the supplied Micro USB cable or Lightning, making this one of the first high-power power banks using the same charger as your iPhone or iPad. Up to three devices can be charged simultaneously and the possibility of pass-through charging is obviously found.