Smart Solenoid

The smart solenoid is the most popular and versatile option, manufactured by Sure Power Industries, the world's most respected supplier of auxiliary battery control devices. It ensures that the vehicle's main battery is fully charged before allowing the second battery to receive charge. Conversely, the control unit disconnects the auxiliary battery when the starting battery voltage drops too low. This process is continuous and automatic especially beneficial to vehicles with modern electric systems as it offers voltage spike protection.