BATTERY MANAGEMENT 21
bepmarine.com
DVSR: Dual Battery Charging Made Easy The Digital Voltage Sensing Relay (DVSR) provides a highly efficient but inexpensive solution for automatic charging of a second battery bank. It ensures correct charging while removing the risk of flat start batteries. When the voltage on the first bank rises sufficiently, the DVSR engages allowing the second 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.
• Safely charge two or more independent battery banks from one charge source (alternator, battery charger…) • Charges engine starting batteries before combining auxiliary bank for charging • Protects start batteries from becoming flattened by domestic loads • Isolates electronics from harmful electrical surges from starter motors • Simple to install 3-wire connection, leaves alternator wiring intact • No volt drop vs. diode isolators • Ignition protected • Surface or panel mountable
Digital Technology Provides: • Multi voltage, auto selects between 12V and 24V DC operation • Digital circuits provide very low power consumption (<2mA in standby, up to 8x more efficient than analog models) and enhanced performance • Remote sensing circuitry allows optional connection from ignition switch, provides same functionality as single sense VSR and zero power consumption when engine is off • Zero stand by current draw when remote sensing circuit utilized with storage mode switch fitted (switch in open position) • Remote status LED output option
Rating Continuous
Rating Intermittent Engages
Part # OEM # LxWxH in
LxWxH mm Voltage
Disengages Cable to meet rating
710-140A 710-140A-B 2.75" x 2.75" x 2" 69 x 69 x 50 mm 12/24V 125A
140A
13.4/26.8V DC 12.8/25.6V DC 8AWG (8mm 2 )
START DVSR Operation (Shown for 12V System) DVSR Operation (shown for 12V system)
Charging begins but batteries remain isolated
Battery voltage rises to 13.4V on charging battery
The two battery banks are isolated
The charge source is removed, battery voltages begin to fall House Batt Positive + (Tinned stud) Orange sticker (Remote LED connection point) Start Batt Positive + (Tinned stud) Black wire - (Negative) Red wire (Ignition control/Storage mode)
Automatically engages to join the two battery banks for charging
Battery voltage falls below 12.8V, and the DVSR disengages
CSP6
BEP House Battery Isolator
POS BUS
NEG BUS
NAVIGATION LIGHTS
+
-
ANCHOR LIGHTS
+
-
CABIN LIGHTS
COCKPIT LIGHT
- + Optional LED
Pro Installer Fuseholder
Optional Orange
BILGE PUMP
House Battery
SPARE
Switch Panel
Optional cut here and join other end for ignition or storage mode control
BEP Emergency
Start Battery POSITIVE +
Wiring diagrams indicative of installation only, for full instructions see the BEP website: bepmarine.com
Parallel Isolator
Black Wire
House Battery POSITIVE +
DVSR
Red Loop
Optional Pro Installer Fusehlder
Optional Switch for Ignition or Storage Mode Control
+
Fuse
-
Engine
Start Battery
BEP Start Battery Isolator
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