So the common solution is to fit one or more auxiliary batteries often referred to as leisure batteries in vehicles or house batteries on boats that are used purely to power those items not related to the starting of the engine. A split charge relay works like an intelligent switch.
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Split charge relay wiring diagram. Phase one of the campervan wiring is now complete hurrah. Actually theres not because. Here is a very basic split charge wiring diagram you would find aboard a campervan. A typical split charge system using a voltage sensing relay. Once power enters the relay the internal contacts connect. Includes pictures and info on wiring crimping fusebox split charge relay and mains 12v electrics and wiring for my campervan conversion.
To fit a split charge relay first connect a 16sqmm red cable from the positive terminals of each battery bank to the large studs on the relay labelled 87 and 30. There is finally a light at the end of the tunnel. Ensure this cable is thick enough to carry the maximum charging current of your alternator. The split charge relay switch will on and allow currant to flow through to the leisure battery when the voltage rises above 132volts. With the screws provided attach fuse box 1 and fuse box 2 as close to the main starter. A typical 12v campervan split charge wiring diagram that connects the starter battery to the leisure battery.
Fit a fuse to one of these cables rated. Basic wiring diagram for voltage sense system 2 1 3. Inside a split charge relay there is a solenoid coil that energises once it receives a 12v signal. Existing wiring not shown for clarity. Typical split charge system wiring diagram. Campervan electrical installation wiring diagram google search.
Gallery of Split Charge Relay Wiring Diagram
