The most simple way to connect and disconnect the starter and leisure batteries is by using a battery isolation or master onoff switchthis just uses a high current switch to manually connect the batteries in parallel once the engine is running and allow charge through to the leisure battery and then disconnect them once the engine is turned off to isolate them and. But brians point about a split charge issue does sound promising as a line of investigation.
Caravan 12v Wiring Diagram Camper Van Conversion Diy Suv
Leisure battery split charge wiring diagram. 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. Only for installation in 12v dcsystems where the vehicle chassis is the groundnegative na to boats 1. This signal is usually from a charge signal wire that is connected to the alternator and will only turn the charge splitter on once the. Inside a split charge relay there is a solenoid coil that energises once it receives a 12v signal. One issue that i would welcome help with is how you get access to the leisure battery on a ducato 250. Connect the other end of lead c to terminal 2 on the split charge relay.
Split charge system layout starter battery leisure battery vsr fuse holder 1 cable 1 cable 2 cable 4 note. A typical 12v campervan split charge wiring diagram that connects the starter battery to the leisure battery. First connect lead d to the leisure battery positive terminal and tighten connect the other end of lead d to fuse box 2 but leave the 6mm nut loose connect lead c to fuse box 2 insert a 40 amp strip link fuse into fuse box 2 and tighten nuts. Importantdis connect the ve terminal clamp from the starter battery and the leisure battery if applicable and secure. Unfortunately with the virus situation i cant really move the mh to somewhere theres a hook up to see what happens when connected to the mains. 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.
Gallery of Leisure Battery Split Charge Wiring Diagram
