uNu Enerpak Plus 8000mAH Dual USB 2.1A Universal Battery Pack with Flash - Retail Packaging - Black Designed with a potent 8000mAh battery capacity housed within a refined frame, the Plus is the best of both worlds The first of its kind, the Plus is the smallest external battery to utilize a two-port interface to charge multiple devices at the same time. A 2.1A output The Plus is equipped with dual-charging ports for efficient charging, integrated LED power indicator for ease of use, and newly designed circuitry for eco-friendly charging. The Emera Plus uses newly created battery technology and circuitry which grants better throughput and power conversion than traditional USB batteries. Using its dual-port charging interface, the Emera Plus effectively charges tablets, smart-phones