- The Ultra-Slim and stylish 10,000 mAh Dual USB Powerbank with Aluminum finish is the perfect travel companion. So slim, it easily slips into your bag yet has enough power to recharge even the most power-hungry tablet. Charge two devices at the same time quickly with high output power from each port. The powerbank features a Smart IC chip so it can deliver the optimum charge for each device, plus the LED display lets you quickly know exactly how much power you have remaining – no more guesswork. Additionally, it includes a no hassle, worry-free 1 year warranty.