A range of quality voltage sensing split charge relays from 30 amp relays to 150 amp relays.
Brocott split charge relay wiring diagram.
I have left boxes on the diagram on the left to help you with your measurements.
This relay is different from other standard split charge relays in that it monitors the main battery voltage and monitors the second battery voltage and only switches the charge to the secondary battery on when required so no over charging can take place and also ensures that the main battery charge is maintained and wont leave you with a flat.
This system uses a heavy duty version of a simple make and break relay the coil of which is energised by a signal that is only 12v when the engine is running usually the charge signal wire from the alternator.
Fit the 2 fuses in the fuse holders.
Select sub category 12volt 180amp 2mtr voltage sensing split charge relay kit 110amp cable.
Split charging relay smartcom voltage sensing the traditional method for split charging is to take a wire from the ignition to energise a relay when the engine is running.
Instillation guide for a 12v voltage sense split charge relay system thank you for purchasing this kit from simply split charge.
This is how you can install your split charge relay.
One should go in between the lead that goes from the starter battery to the split charge relay and one between the split charge.