These ultra slim portable ReVIVE Solar ReStore RA 4 Universal USB Power Panel is for campers, hikers and outdoor enthusiasts who are planning for an adventurous tour but having less space for bulky energy banks. This Universal USB Power Panel generates an output of 5V DC/1A and features two USB ports that virtually charge any USB powered device with 14 Watt charger. Unfold this 2.8ft RA 4 and expose 4 ultra slim solar panels to sun and start juicing your devices instantly. It’s got an adjustable strap which you may attach to its durable nylon loops for easy carrying. An internal flap pocket protects your device while a rain-cover protects this folding charger from rain, dirt and dust. I’d say, it’s pretty good value product for your money.
Available at amazon.com for $50