Keep your devices fully charged even while out on an errand by taking with you the portable UL-listed power bank brick. This power bank is equipped with 2500 mAh lithium polymer battery with an output of 5 Volts/0.8 Ampere that can charge up your smartphones, tablets, MP3 players, and the like. All you have to do is plug in your charging cable into the power bank's USB output to start charging. When the power bank's juice has run out, just charge it via its micro USB input with the included...