USB to 12 volt battery.  USB 5V W/12V SAE connector.  (always test your continuity)  Will charge any iPhone, iPod, Cell phone, Blackberry, Digital Camera, GPS, Bluetooth helmet headset or communication other chargeable USB device. The USB charger mounts to 7/8" or 1" handlebars or the screw cap can be places on a dashboard.  Two USB ports provides power for you and another. The unit converts 12V - 24V and outputs  5V, 2A to charger USB devices. A Weatherproof tethered cap. Easy to follow illustrated installation.  4 feet of wire.  1 Wire connector.  Complete kit ready to install.  Hook it up to your on/off switched wire. 

BMW, Ducati, Harley Davidson, Honda, Yamaha, Suzuki, Can-Am, Victory, Snowmobiles, ATV's and so much more.   Looking for a solution to charging USB devices on the go.  This options provides a world of flexibility.  SolarDIY could be a resource for your ingenuity? It is what you make of it.  Do it yourself!