Voltaic Systems Arc 10W Portable Solar Charger Kit with Integrated USB Port and External Battery Pack (4，000mAh)<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> RUGGED PANELS - The 10W/5V folding panel uses industry leading SunPower high-efficiency cells that are ETFE coated to last at least 3x longer than the competitors. </span></li><li><span class="a-list-item"> RAPID CHARGING - 4.5 hours in the sun fully charges the V15 battery (4，000mAh/15Wh)， V15 charges most smartphones 1.5 times. </span></li><li><span class="a-list-item"> MAXIMUM COMPATIBILITY - Voltaic's compact folding solar panels are designed to power and charge all tablets， USB cameras， and smartphones. </span></li><li><span class="a-list-item"> ULTRA COMPACT DESIGN - Sturdy metal grommets allow for easy mounting on various backpacks， bicycles， and touring gear. Or simply stash in your favorite bag for compact power anywhere. Integrated smart circuit USB output allows fast charging direct from the solar panel. </span></li><li><span class="a-list-item"> ETFE ADVANTAGE - The waterproof， UV， and scratch-resistant coating is built to last at least three times as long in the field than our competitors. </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/51zOMBhz76L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41czvG52J4L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41e8PY1SuVL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/518I32qZYnL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41XAF-zRBkL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/5150rYGJtaL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51Nzv-KeFbL.jpg" noproxy>