Charges all conventional 6/12/24 Batteries Our highest output 220VAC charger Cranking Assist Rating of 325 Amps at 6 volts Vacuum Impregnated heavy-duty Transformer to seal the unit against external agents and to prevent harmonic distortions Multi-diode rectifiers (patented) to take over in case of failure Fan cooling mechanism prevents overheating enhancing units life span significantly Certified to use outdoors any weather Cautions against incorrect polarity with patented Stop/Go Light technology 500 Amp Clamps are covered with vinyl insulation; will not arc or spark. Patented Flexi-spring cable guards relieve cable stress CE approved Electrical Requirement: 230 VAC; 50/60 HZ Battery Voltage: 6/12/24 Volt Continuous Ratings: 90/75/55 Amp AMP Boost Rating: 330/500/700 Amp Cranking Assist Rate: 325/270/180 Amp Timer: 90 min. Automatic Weight: 33 Kg/75 lbs AC Cord: 2.4 m DC Cord: #4 AWG, 3 m Clamps: 500 Amp Rating