Dual Pro Sportsman Series Battery Charger - 40A - 4-10A-Banks - 12V-48V. The Sportsman Series of chargers answers these needs. This line of chargers is designed for all types of battery applications. Sportsman chargers have all the safety and reliability Specifications for Dual Pro Sportsman Series Battery Charger: Manufacturer: Dual Pro Additional Features: 12v Voltage: 12 volts Features of Dual Pro Sportsman Series Battery Charger Charger Output Voltage: 12v Charger Output - Amps: 10 Amp Charging Banks: 1 Portable: No Charger Input - Voltage: 120v Package Contents: Dual Pro Sportsman Series Battery Charger Dual Pro SS4: Sportsman Series Battery Charger - 40A - 4-10A-Banks - 12V-48V