Opteka 14-WATT Dual EcoPanel Rapid Solar Charger with 2200mAh Battery Bank Kit for Smartphones, Tablets, Battery Packs & Other USB Powered Devices 14-Watt solar charger for all smartphones, tablets, battery pack & most USB devices High Capacity, 2200mAh; 1-1.5 full charges or add 11 hours talk time to your iPhone 5/ 4S / 4G / 3GS; 1 charge for Samsung Galaxy S3, 100 hours + audio playback, or 100% - 150% to the battery life of most mobile phones 4 Rapid charging Panels Loops to attach to your backpack or tent for continuous charging while hiking, camping, etc LCD indicator reveal the battery level; Input: DC 5V 1A