https://www.engadget.com/2009-11-20-power-hotspot-for-12-volt-noncritical-electronics-and-the-surv.html
Power HotSpot for 12 volt 'noncritical' electronics and the survivalists who love them
Nov 20, 2009 - Companies have been trying to get the ball rollin' for a few years now, but we haven't really seen a solar charger hit the sweet spot between convenience and...