New, box opened for testing only. Complete with case, cables and instructions manual. Power supply charger model PSC-550 by Midtronics, for maintenance of 12-volt batteries. Input voltage 108-132 Vac / Vca, Input Watts 950 W, Input Frequency 50-60 Hz, Output Volts 13.4 Vdc / Vcc, Output Amps 55 A. Connects to a standard type B electrical outlet. Integrated fan. Case measures 12 X 7 1/2 X 7 1/2 inches, total weight 8 pounds. Surplus from a plant in Montreal (Quebec, Canada).