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Recharge your mobile devices with the black mophie power boost XXL 20,800mAh Dual USB Portable Battery Pack, a compact and portable mobile power solution. This power boost features dual USB charging ports, so you can charge two mobile devices simultaneously. Between both ports, your devices will enjoy up to 4.2A of total power output, but no more than 2.1A of charging power per port.
The power boost is designed to be a universal charger, supporting any device that has a charging cable that ends in a USB Type-A connector. For example, if you have a smartphone with a micro-USB to USB Type-A charging cable, connect one end to the phone, and the other to the mophie to start charging.
The power boost provides LED status indicators, which give information on both the current charging status, as well as the current battery level of the mophie power boost. To charge the power boost itself, simply connect the included micro-USB cable and plug it into an (optional) USB charger, or available USB port on a desktop or laptop computer.