Intelligent Solenoid - National Luna

Intelligent Solenoid - by National Luna The National Luna Intelligent Solenoid is the brains behind a dual battery management system. It manages the charging and isolation of your batteries automatically, and can be installed with no modification to your vehicle's factory wiring system. It comes in two different models: the original which fits most vehicles, and the Land Rover, for the said vehicle. Compatible with the Dual Battery Controller, but not with the Dual Battery Monitor. How It Works: The Intelligent Solenoid senses an incoming voltage of greater than 13.1V when you turn on the vehicle. It then starts an internal timer for 5 minutes, keeping the full charge to the primary battery to recoup for the discharge of starting the vehicle. After 5 minutes, it automatically closes the circuit in the solenoid, allowing current to flow to the secondary battery. This connection remains closed until the Intelligent Solenoid senses a voltage of less than 12.7V across the system, usually w