Product Details Designed for fast paced commuters and drivers who want to stay connected but never be tied down, Brunton’s Torpedo™ 2800 works with the 12v power socket in your car or truck. Features an on-board lithium battery, so you can take the charge with you when you go. Lithium ION energy – High-grade Lithium ION cells charge faster and last longer; no memory and minimal discharge; 1000 cycles at 80% capacity Charge time – DC car socket - 2 to 3 hours; USB - 3 hours,ac/usb - 3 hours Charging Capacity-2x Smart Phone charges LITHIUM ION BATTERY 2600mAh POWER OUTPUT – 1 Amp SPECS – 5.1x1.1, 4.75 oz INPUT – Micro USB & DC Car Adapter OUTPUT – DUAL Output, USB 2.0 and Micro USB