HP Essential Power Bank – For Tablet PC, Notebook, USB Device – 3 A – 5 V DC, 9 V DC, 10 V DC, 12 V DC, 15 V DC, 20 V DC Output – 5 V DC, 15 V DC, 20 V DC Input

IOGEAR GearPower 16,000mAh Capacity Mobile Power Station – For iPad, iPhone, iPod, Smartphone, Tablet PC, USB Device, Gaming Console, MacBook, Notebook – Lithium Ion (Li-Ion) – 16000 mAh – 2.40 A – 5 V DC Output – 3 x – Black – RoHS, WEEE Compliance