The Cyclops Solar Solutions 5000 mAh Power Pak is portable backup power ideal for charging portable devices including tablet devices on the go and anywhere. It has two USB ports, 2.1A and 1A outputs. This EnerPak will charge a cell phone up to 5 times on a single charge. You can charge two devices at same time, making powering up, easy and quick. This portable Power Pak has a 5000 mAh Li-polymer battery with no memory effect.