Battery Management
and Digital Voltage Sensing Relays

Battery Management is central to the safe operation of a boat. All boats and vehicles with an engine have at least one battery whose primary purpose is starting the engine and providing power for loads such as lights, pumps, and electronics. The safe switching between batteries, loads, and charge sources is achieved using products in this section.

Digital Voltage Sensing Relay (DVSR) 12/24V 710-140A The Digital Voltage Sensing Relay (DVSR) allows the charging of a second battery bank from any single charging source. When the voltage on the charged bank rises sufficiently, the DVSR engages allowing the 2nd battery bank to charge. When charging stops and voltage falls, the DVSR automatically isolates the battery banks, ensuring that engine start batteries are kept fully charged. Digital circuitry provides superior reliability and extremely low power consumption. Digital enhancements have introduced remote sensing circuitry that allows an optional connection from the ignition switch to provide the same functionality as single sense VSR and zero power consumption when engine is off. Another benefit is a zero stand by current draw when remote sensing circuit is utilized with a storage mode switch fitted (switch in open position).

  1. Safely charge two or more independent battery banks from one charge source such as an alternator or battery charger
  2. Charges engine starting batteries before combining auxiliary bank for charging
  3. Protects start batteries from becoming flattened by domestic loads
  4. Isolates electronics from harmful electrical surges from starter motors
  5. Simple to install 3 wire connection leaves alternator wiring intact
  6. No volt drop vs diode isolators
  7. Ignition protected
  8. Surface or panel mountable
  9. Replaces previous models 710-125A and 710-125A-DS
  10. Multi voltage, auto selects between 12 and 24V DC operation
  11. Digital circuits provide very low power consumption and enhanced performance
  12. Remote status LED output option
  13. Continuous rating: 140
  14. Engages: 13.2 VDC, Disengages: 12.7 VDC

We can supply and fit the full range of BEP Battery switches.

  • JAG marine for AGM Deepcycle Battery
  • JAG marine for AGM Deepcycle Battery
  • JAG marine for Flooded Deepcycle Battery
  • JAG marine for Flooded Deepcycle Battery
  • JAG marine for Gel Deepcycle Battery
  • JAG marine for Gel Deepcycle Battery
  • JAG marine for Starting Battery
  • JAG marine for Starting Battery
  • JAG marine for Gel Deepcycle Battery
  • JAG marine for Gel Deepcycle Battery
  • JAG marine for Starting Battery