This fan-cooled charger is designed for heavy-duty fleet and industrial use. Charges a variety of batteries: 6V, 12V, 18V and 24V. User does not have to separately charge 18V and 24V batteries. Full power engine start available in each volt range. Charger Type: Manual, Includes: Timer switch with hold position,, Volts: 6, 12, 18, 24, Works With: 6, 12, 18, 24 batteries, Amp Charge Rate: 30 Amp for 24V, 44 Amp for 18V, 60 Amp for 12V, 80 Amp for 6V, Amps: 180 Amp engine start for 6V, 200 Amp engine start for 12V, Cable Length (in.): 6 ft with clamps, Case Material: Steel Fan-cooled unit Rotary dial Timer switch with Hold position