... with Build-in 3000mAh Lithium Polymer battery and 0.5W solar panel, contains all-in-one designed Charger& Sync& protection ... occur, over discharge, over charge and over current, there is automatic cut-off protections so as to prevent dangers.3. Excellent ... Polymer Battery Weight :87gInput : 5V700mA Efficiency: above 88%Output : 5V1A Solar Panel: 0.5WSafety Standard: RoHs, CE, FCC, MFi Item model ...