inputs.text: great concept lacking practicality - past weekend first chance give try concept great one realized need trip arctic multiple battery operated devices failed time lack plugin going however could not relate figure ` 1500mah internal battery must say sadly disappointed find size internal battery allowed charge smart phone one time battery depleted based experience small battery recharges capable recharging multiple devices andor used power portable computer device sadly lacking solar recharge capability good one eighthour charging time device charged device not meet recharging needs field obviously useless less sunny conditions recharging one device one time keep emergency backup device larger primary device depleted hope sunny conditions restore cannot recommend standalone backup small internal batterygreat concept lacking practicality sore disappointment afraid