uNu Exera Duo Charging Dock (2 x 1700mAh Batteries included) - for iPhone 4 4S Exera Battery Case
IntroductionsGo a step further and wirelessly EX-change unlimited power with the ultra-portable, Exera Duo Charger Combo Pack. This intelligently designed battery-charging hub features a multi-slot Exera battery interface and additional USB port. The Exera Duo Charger can connect up to three devices simultaneously and supports serial charging. Simply by utilizing the two Exera battery slots users can eliminate the use of a phone-charging cable, effectively making phone charging wireless! Plus, swapping between the three batteries (one included with the Exera Case) users have a never-ending source of battery power.Real Cordless ChargingBy using the two integrated Exera battery ports users can connect and charge Exera batteries directly to the hub, eliminating the need for a phone-charging cable. Plus, swapping depleted batteries with fully-charged batteries from the hub allows for a constantly replenished source of battery power.Dock, Charge, and Go!Made to be completely portable, this hub can easily fit inside a briefcase, purse, backpack, or even a pocket, making it a perfect travel companion. Simply dock any Exera battery and/or small USB device, let it charge, and hit the road!An All-In-One HubThis comprehensive hub is equipped with two Exera battery ports and an additional USB outlet allowing for up to three devices to simultaneously connect. By charging multiple batteries at once uNu has eliminated constantly swapping charged and un-charged batteries.300% Power EfficiencyCharge up to 3 batteries at once! Via the USB port and two Exera battery ports users can charge an iPhone 4/4S and battery case, plus two additional Exera batteries. In a single charging session users have access to a possible 4 charged batteries (integrated iPhone battery, and three Exera batteries)