Caravan Split Charge Relay Wiring Diagram

Many people wire their campervan piecemeal they start with a habitation area battery then add a split charge relay.

Caravan split charge relay wiring diagram.

Then a mains charger then lights gas heater blower controller water pump power monitoring solar charging of the habitation battery etc. My towcar has a split charge relay fitted on the cable between the alternator and pin 10. I am updating the caravan wiring as per your diagram above. The brown pin 5 in most cases is not used when wiring tow bar electrics and it is important to ensure that the white pin 3 cable is earthed.

Campervan split charging a helpful ilrated guide vanlife deep red self build motorhome electrics eo 2497 charge relay wiring diagram dodge brake light ve 1007 leisure battery ls 4313 in system land rover zone caravan camper exploroz articles towbar information diagrams malcolms cg 0742 zig unit cf8 12v electrical installation and campervan split charging a helpful ilrated guide read more. Straightforward to fit the smart split charge relay provides power to the caravan s 12 volt supply battery charging and refrigerator via a towbar s 12s or 13 pin socket socket not included. A super simple wiring diagram on how a split charge device directs power towards the leisure battery one it has been engaged. Is there any point in leaving the split charge relay there as this circuit will only be powering the fridge.

In some cases a split charge relay might be needed in order for the power to switch divide from charging a leisure battery and the car battery. Heavy duty split charge kit with 12v m power 140amp voltage sense relay 110amp 16mm2 cable top quality heavy duty split charge relay system kit supplied with 110amp 16mm cable suitable for safely charging any 75ah to 220ah leisure battery s suitable to install into most camper vans motor homes 4x4s day vans mobile workshops cars and. 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. The relay will then switch in the alternator feed to the leisure battery to let it charge just like the vehicle starter battery.

Recommended over the old fashioned split charge relay on modern vehicles as this self switching unit requires no connection to the vehicle alternator.