These are some of the wire diagrams you might use in your van
These diagrams are how I wired my van. Please use the instructions that came with your items
I got this split charger from..
Self sensing voltage. They can be found on ebay or go direct to their web site
If you don’t want it to work all the time. Put a switch on the small black earth wire
I got this split charger from off ebay. It does self sense the voltage and can be use to charge the leisure battery as well, (but only a trickle charge). I just used it to auto turn on and off the fridge when driving..
I found, when solar is connected, the charger works both ways. When solar has charged leisure batteries, it then charges the van batteries as well..
I think its always best to put a volt meter in your van..
How I did this one is to have the voltage of both Van & Leisure batteries at the flick of a switch. The swith is a double pole, on-off-on
Double pole, double throw switch.. On-off-on
I draw and publish these diagram for you to use freely..? To help your self build run smoothly..
If you would like to donate money to help me make more, please use this PayPal link..