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DBCM-75: Dual Battery Charging Module 75 Amp


Product Description

The Dual Battery Charging Module 75 Amp (DBCM-75) is made for both marine and RV applications.  It connects both main and auxiliary 12 volt lead acid batteries together only when the alternator is putting out charge current.  When not charging, both batteries remain separated, preventing both from discharging when the ignition or a load is left on.   The main battery is always connected to the alternator to absorb the charge current.  

The DBCM-75 module eliminates the need for a diode type battery isolator, with its associated .7 voltage drop.  This allows the batteries to reach a full charge voltage over 14 volts which prevents early sulfation and shortened battery life.  The contactor handles the current supplied to the second battery only.

The DBCM-75 is also available in 40 Amp version.

For more information go to “other details” for the product sheet.

Dimensions:  W: 1.20” x  H: 1.2" x  D: 3.20"

Other Details


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0.60 Ounces
Products will usually ship with-in 3 business days from order. For larger quantities or expedited orders, please call. If you are shipping to a different country than the US, expect additional fees from the carriers when delivered.


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