[A4C](http://www.passwird.com/links/2BHVae) has a Cobra Electronics 6000mAH Dual Panel Solar USB Charger for **$19** with free shipping.

* 6000mAh battery pack,and can charge up to 3 devices
* 2 USB ports and 1 built-in micro-USB connector
* [$37.90 at Amazon.com](http://www.passwird.com/links/5xLHHh)