Solenoids are heavy duty switches that are turned on and off by smaller amounts of amperage current. Durite Rotary Marine on/off Battery Isolator with Removable Control Knob in Off Position 0-605-11. Think of a battery isolator as a huge diode that only lets juice flow one way (LEDs work like that which are just Light Emitting Diodes). Battery Isolator with Fixed Key - 100A 24V Durite 0-605-01 Lucas SSB106 style battery isolat. the engine is stopped) the isolator kit disengages from charging the auxiliary battery. When two or more batteries are installed in your vehicle (RV, Boat, Limousine, Emergency Vehicle, Automobile, etc. Multi-Battery Isolators are used to eliminate. What you pictured appears to be a solenoid. When the voltage of the start battery drops (i.e. * Order to be placed in quantity multiplex to the package quantity of Pc/Ctn as listed above each models and min. Sure Power Multi-Battery Isolators are the original Battery Isolator, and still the best on the market.
For negative ground systems up to 50 Volts.CapsHeavy duty 70A rating stud mounting type diodes! (Not 50A button type with weak pin).
Steed innovative design of "Serviceable" construction, your investment ensured! (Not un-serviceable type potted with epoxy which have to write off entire unit if any parts are failed!).