... out, overload and over discharge or overcharge, the system will automatically protect the function.UPS function, work ... , Village, Country area, Camping ,Adventure Activity etcFeatures Solar power charge, easy to useLong working life, Li battery ... place.2. Don't let children reach, play with, break up, beat, knock at or carry solar system3 ... in 3 months Ultralight Ultrathin Portable solar power system