The Power-Werx USBbuddy is a great idea. On the input side it features Powerpole® plugs.
The output side is USB. Input voltage is 10-32 VDC and output to USB is 5VDC at up to 3 Amps.
Powerpole® is a registered trademark of Anderson Power Products, Inc.
Anderson Power Products® is a registered trademark of Anderson Power Products, Inc.