Ballast Resister – The term “ballast” relates to stability. it refers to the fact that the ballast resistor is helping maintain the stability of the electrical circuit.
VSR – The Voltage Sensitive Relay (VSR) allows two batteries to be charged at the same time. When the engine is started and the start battery reaches 13.7 volts, the VSR engages, allowing two battery banks (start and house) to be charged simultaneously.
Rectifier – A rectifier is an electrical device that converts alternating current (AC), which periodically reverses direction, to direct current (DC), which flows in only one direction. The reverse operation is performed by the inverter.
Inverter – A power inverter, inverter or invertor is a power electronic device or circuitry that changes direct current (DC) to alternating current (AC). The resulting AC frequency obtained depends on the particular device employed. Inverters do the opposite of rectifiers which were originally large electromechanical devices converting AC to DC.
Fusible Link – a fusible link is a length of wire that is several gauges thinner than the wire that it is designed to protect. (generally 4 gauges narrower)