Keep your gadget's batteries in optimum working condition with this portable power bank. It has 2200 mAh battery capacity with Lithium Ion Grade which is a non - recycled battery. It is UL Listed (UL File #MH60879, Model #2622) and one of its integral components is a USB output port which is capable of delivering 5 volts/0.8 Amp of power which is actually really impressive and makes for faster charging. It also has split ring attachment for attachment to backpacks, belt loops etc. It is cap...