ExternalLaptopBatteryPack1).Weight:about770g2).Chemistry:LithiumIon3).ChargingInput:16V,4.5AbyACadaptororfoldingsolarcharger4).OutputVoltage:16V/19V(adjustable)5).OutputCurrent: 3.5A6).Max.OutputPower:60W7).ChargingTime:About4-5Hours(ACadaptor) About6-14Hoursbysunshine(foldingsolarcharger)8).OutputCapacity:7600mAH/84Wh9).CyclingLife:Atleast300times.LIfeisterminatedwhenitsdischargingcapacityislessthan80%ofthenominalcapacityfor3consecutivetimes.10).Dimension:230*165*15mm foldingsolarcharger: 1) MaximumPower:20W;2) Tolerance: 5%;3) MaximumVoltage:20V;4) MaximumCurrent:1A;5) OpenCircuitVoltage:23.6V6) ShortCircuitCurrent:1.11A;7) UnfoldingDimension:335mmx670mmx7mm;8) FoldingDimension:335mmx170mmx30mm;9) Weight:1.11kg;Accessories:1).1charger:16V,4.5AbyAC2).1Outputcable+12pcsConnectorTips3).1UserManual4).1CompatibleList5).1SpecificationListofTipsPackingDimension:380mmX280mmX5mmTotalWeight:2.5kg;