As one of its daily deals, A4C offers the Cobra Electronics 6,000mAh Dual Panel Solar USB Charger for $14.95 with free shipping. That's tied with our expired mention from five days ago as the best price we've seen. (It's also a low by $5.) It charges up to three devices at the same time and features an LCD display, two USB ports, and a microUSB connector. Deal ends today.