Camping Interior Westfalia leisure battery charging
Hacksawbob For searchability: Westy Charging leisure battery relay
== I wanted to get my head around this so I did a bit of digging in the fuse box head scratching in Bentley and the Westfalia diagrams and with a lot of help off the forum (thanks Bigherb especially) this is my understanding how the charging system works on a Westy.
Note the leisure relay 'earth' is cancelled out by the positive feed from the ignition this means the relay is fed 2 positive feeds to the switched side during engine cranking so the relay doesn't engage and the leisure battery and starting battery aren't connected until the engine has started. There are two benefits from this firstly the leisure doesn't sap current during engine starting, also there would be considerable current being pulled through the white red wire between the batteries from the starter motor. (Note: the main positive feed from the starting battery to the starter motor isn't shown on this diagram)
