The new Digital VSR (Voltage Sensing Relay) combines all of the market proven features of the existing VSR with a host of new functionality. The Voltage Sensing Relay (VSR) allows the charging of a second battery from a single charging source. When the voltage on the start battery rises to a level indicating a 60% charge, the VSR engages allowing the 2nd battery to charge. When charging stops and voltage falls the VSR will disengage isolating the two batteries from each other. Dual sensing functionality enables the sensing of two battery banks allowing two way charging.

Key Features

• 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 and winch motors
• Simple to install 3 wire connection, leaves alternator wiring intact
• No volt drop vs. diode isolators
• Ignition protected
• Surface or panel mountable
• Replaces previous models 710-125A