Charging Power with High Cranking Assist 6/12/24 Volt UL,cUL, and/or CSA. Listed For Indoor and Outdoor Use.  Fleet charging power with a high cranking assist rating. Patented Stop/Go Light. Features AC and DC circuit overload protection and automatic 90 minute timer with hold position. Includes a heavy-duty transformer and patented multi-diode rectifier with built-in spares to take over if one fails.

Specs:UL cranking assist rating 255A; 7 D.C. Leads 4 AWG clamp rating - 500A; mfgs. boost rating 455A; UL continuous ratings 75/65/30 amp. Ship wt. 59 lbs.