Relay, Digital Voltage Sensing - 140A@12vDC

The DVSR allow the charging of  a second battery bank from any single charging source. 
When the voltage on the bank being charged rises sufficiently, the DVSR engages allowing the 2nd bank to charge.

When charging stops and voltage falls, the DVSR automatically isolates the battery banks ensuring the engine start batteries are kept fully charged.  Zero power consumption when engine is switched off.  Zero standby current draw when remote sensing unit is used with a storage mode switch fitted (in open position).