Caravan Split Charge Relay Wiring Diagram

My towcar has a split charge relay fitted on the cable between the alternator and pin 10.

Caravan split charge relay wiring diagram.

Welcome to raptor s garage. Recommended over the old fashioned split charge relay on modern vehicles as this self switching unit requires no connection to the vehicle alternator. Is there any point in leaving the split charge relay there as this circuit will only be powering the fridge. The split charge relay switch will on and allow currant to flow through to the leisure battery when the voltage rises above 13 2volts.

Basic wiring diagram for voltage sense system 2 1 3. This is how you can install your split charge relay. I would like to charge the caravan battery while driving using this relay. A typical campervan split charging system has a device that connects the battery used to start the engine to the leisure battery when the engine is running.

I am wiring up the 12s towing electrics for my caravan year 2000 using the smartcom heavy duty relay 020867. One should go in between the lead that goes from the starter battery to the split charge relay and one between the split charge. I am updating the caravan wiring as per your diagram above. 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.

Fit the 2 fuses in the fuse holders. In this episode paul and chris connect up the new auxiliary battery fitted to the l200 to the main battery using a split charge. 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. 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.

With the screws provided attach fuse box 1 and fuse box 2 as close to the main starter. The relay outputs being for fridge 12v permanent live for internal 12v equipment or to charge caravan battery via relay in the caravan.