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The IBS dual battery system uses a 200 amp relay together with a microprocessor to offer a reliable and easy to install system for adding a second battery to any vehicle.
The Relay Boost Module must be installed. This module will allow linkage of the main system even if the starter battery has failed.
In case of a complete discharge of the starter battery (start up of engine from starter battery is no longer possible), the “Link” button on the IBS battery monitor (IBS-DBS/BM3 or DBi-DBS) will enable the user to connect to the Auxiliary Battery to start the vehicle.
In very cold weather or when starting capacity is reduced the RBM supports the relay to make sure the contacts stay properly closed during link start, this extends the relay life.