Specifications:Charger voltage: 110-220VOverall Dimension: 245×114×102mmSpecification: 1/4",3/8",1/2",5/8"(16mm), 3/4"(19mm)Optional flare clamp: 6mm, 8mm(5/16"),10mm, 12mmFlare shape: 45° flareNominal voltage: 11.1VBattery capacity: 220OMAHExpansion Potential: 5/8" copper tube about 135 times (full charge)Charging time: about 100 minutesOperating temperature: 5℃-40℃