Analytic Systems 200A, 40V 3 Bank Ideal Battery Isolator MossyOak ShadowBranch Plain Black Cap Insert and Plain Black Cap Insert and Waterproof Snap On Cover Color coded for easy installation and component identification it can also be used to convert a single bank battery charger to a 2 or 3 bank charger or as a pure diode between a vehicle and trailer or other remote load Ideal Diode technology uses MosFet Transistors and control circuitry to replace the diode used in a traditional battery isolator and reduces the voltage drop across the isolator to a mere 160 millivolts at 200 Amps of charging current and essentially zero volts at low current