This fully automatic Microprocessor Controlled Dual Battery Management System separates the starter battery from auxiliary battery if the vehicle has stopped and links them while the car is running. All Systems are equipped with a 200A power relay. For emergency situation all systems are equipped with the manual override function (Link). This manual linking function (called load sharing) is very helpful for jump starting or when using high current appliances such as an electrical recovery winch, power inverter or compressor. The kit includes a 4.7m wiring loom with sealed automotive plug, battery and crimp terminals for easy installation. The battery monitor is installed in the vehicle (dash) and informs the driver about the charge level of both batteries, the charging voltage from the alternator or an additionally installed solar system and the relay link status. The system offers low battery alarm on both batteries and a link failure alarm. Includes a manual link for 30 and 120 Min with automatic return. This is a genuine IBS kit, made in Switzerland but branded 'Britpart'.