For all vehicles (exc. '86-up Chevy, GMC, Toyota and all Volkswagen vans with alternators and vehicles with Motorola 35-, 37-, 55- and 62-amp alternators that do not have red terminal plate—used on some '73-80 AMC Jeep® and IHC vehicles). 165 amps. Run accessories in vehicle without draining battery Automatically charges auxiliary battery as you drive, never overcharges . Self-contained electrical system converts alternator or generator to safe, efficient charger . Automatically isolate both the auxiliary and vehicle batteries so the discharge of one does not drain the other's power. Handle alternators up to 165 amps. Rectifiers and heat sink allow maximum heat dissipation without mechanical attachment. Eliminate shorting problems. Solid state. For all 6- to 36-volt, negative-ground electrical systems. UL listed.
