sense lead/fuse

[Big.mac]

Regarding the earth. It would be normal practice to connect Starter batter -ve terminal to earth, leisure battery -ve terminal to earth and 0V on DC-DC charger to earth as well. That way they connect to each other via the vehicle chassis rather than having a direct cable between them. I suggested the cable in my simplified approach above because I’m not familiar with this vehicle so don’t know if there is a suitable earth point close to leisure battery and DC-DC charger. If there is a suitable earth point, do it this way. If the DC-DC and the Leisure battery are close together, connect them both to the same earth point (and therefore directly to each other as well).

Hope this helps

 

[TheBeast]

It helps massively yes if the leisure battery is earthed and the dc-dc is attached to leisure battery via the 0V then wont the dc-dc be earthed through the leisure battery or does it need its own earth?

 

[Big.mac]

It helps massively yes if the leisure battery is earthed and the dc-dc is attached to leisure battery via the 0V then wont the dc-dc be earthed through the leisure battery or does it need its own earth?

If the leisure battery -ve is connected to both earth and to the DC-DC 0V connector then yes the DC-DC is connected to earth and won’t need it’s own earth.

 

[TheBeast]

So the leads arrived, put the fuse in. There is room for another fuse in the end attaching to my dude box, should I leave that empty?

 

[TheBeast]

The piggy back thing arrived. There is space for two fuses in the end that attaches to the fuse box. Should there be two fuses?

 

[Deaky]

The fuse that’s already in is for your new circuit. You remove a fuse from your fuse box, plug the piggyback where that fuse was and refit the fuse in the empty slot on the piggyback.

 

[TheBeast]

The fuse that’s already in is for your new circuit. You remove a fuse from your fuse box, plug the piggyback where that fuse was and refit the fuse in the empty slot on the piggyback.

The pink fuse seen there I put in. there are three empty slots in the fuse box so just put the fuse in there, leave the fuse in the back of it then attach the other end to the sense bit of the charger?

 

[Deaky]

Plug the piggyback into an empty slot, the fuses must face upwards with the lead to the LHS

 

[andys]

And make sure the empty slot you plug it into actually has metal contacts in it, they won't all have.

 

[boxelder]

It also needs to be an ignition controlled fuse slot. Again, I'm no electrician, but the sense lead is to tell the charger that the ignition is on. As far as I know, only some of the fuse slots are ignition controlled i.e. interior lights, stereo etc that can be on when the ignition is off aren't suitable. Middle column on a T6.