Bushch & Müller makes a device that can be used to power gadgets from a SON hub (adjustable from 2.8 to 13.3V). http://www.peterwhitecycles.com/ewerk.php http:

Bushch & Müller makes a device that can be used to power gadgets from a SON hub (adjustable from 2.8 to 13.3V). http://www.peterwhitecycles.com/ewerk.php http://www.peterwhitecycles.com/ewerk.php Based on the information provided, it is NOT plug-and-play; you must manually adjust voltage and current for your device, and if it's not amenable to voltage sags/stoppages, you have to add a buffer battery.