The fully automatic DBMS separates the starter battery from auxiliary battery if the car is stopped and link them while the car is running.
All Systems are equipped with the IBS 200A power relay. systems (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.
All systems are available in 12V and 24V. D+ Signal is not required.