1. While the battery is in electricity shortage, it will disconnect auxiliary battery, guarantee the main battery charging and working firstly.

2. While the main battery is power filled, it will charge for auxiliary battery automatically, do not affect power supplying for electric equipments.

3. While not charging, it will break the connection between main battery and auxiliary battery automatically, need not to worry about it will can't start the engine for lack of electricity.

4. There is overload and short circuit protection.

"5. The smart solenoid combines the simple, reliable operation of a solenoid with sophisticated battery control capabilities. Its primary role is ensuring the vehicle¡¯s main battery is fully charged before the second battery receives charge. It does this by monitoring the voltage of the starting battery and will only energise the solenoid and link the auxiliary battery when the starting battery reaches 13.8 volts. Conversely, the control unit disconnects the auxiliary battery when the starting battery voltage drops below 11.5 volts. This process is continuous and automatic.
"

1. High performance products that designed and producted according to military products' index

2. Working temperature: - 50 to 125 degrees Celsius ( ¡æ )

3. Waterproof, shockproof and antimagnetic

4. Applicable objects: Army, adventure, off-road vehicle and auto audio fancier, vehicles which equiped with large capacity in-car electrical equipments, and automatic vehicles.