One of the world’s top suppliers of marine electrical products, BEP Marine, is introducing a new digital voltage sensitive relay. It replaces the company’s well known VSR, which is hugely popular and is considered essential on any boat with more than one battery bank.

The DVSR, which functions as an automatic smart battery switch…

…allows charging of two independent battery banks from a single charging source. When the voltage on the start battery rises to a charged level, the DVSR engages allowing the 2nd battery to charge. When charging stops and voltage falls, the DVSR will disengage, isolating the two batteries from each other. Dual sensing functionality enables the sensing of two battery banks, allowing two way charging.

Here is an earlier post from our site explaining the VSR in detail.

According to BEP, their new DVSR offers a number of advantages over the older version. They include:

• 80% lower stand-by current draw during normal operation when powered but disengaged
• Zero stand-by current draw when remote sensing circuit utilized
• Multi voltage – auto selects between 12V and 24V DC operation
• Remote status LED output. Provides DVSR status indication at remote location
• Remote sensing circuitry provides isolated control from secondary supply, and enhanced protection from voltage spikes when connected to ignition switch
• Increased accuracy of voltage measurement through digital circuitry
• Lowered cut in voltage from 13.7V to 13.4V (26.8V for 24V) to suit low output alternators, and high temperature environments

Boaters who want to upgrade to the new BEP DVSR will find it on our sister boat wiring site, EzAcDc later this summer.