The capdase powercup 2.2. includes 1a, 2.1a USB ports, so you can charge many devices at the same time. An adjustable base made to fit within most car cup holders, its powered through the car cigarette lighter.
Product specs:
Powered through the car cigarette lighter
Power indicator & replaceable fuse
Input: 12v dc
Output: 5v dc, 3.1a