Auto Charge 20 Model # 091-10-12 This battery charger has a 20 ampere output to charge three independent batteries. The charger contains 3 seperate and independent circuits, 1 for each battery. Auto Charge 20 PIM Model # 091-10PIM This battery charger has a 20 ampere output with a seperate Ground Fault Interrupter and 15 amp. circuit breaker to charge a three battery system. Auto Charge D2 MODEL # 091-74-12 This battery charger has a 25 ampere output for a 12 volt battery system, a 3 ampere output for an engine battery, an additional 5 amp power supply for 12 volt auxiliary electrical loads, and a triple bargraph display. Ideally suited for DDEC powered vehicles. Euro Charger III Model # 091-118-12 This charger designed to meet CE requirements, is a basic voltage regulated, current limited, cost effective charger available in 12 or 24 volts.