Has anyone ran a set of wires to the back of the new Defender for an Anderson plug? I want to charge my trailer battery bank when we drive. Any help would be appreciated and don’t forget the pictures.

 

I did this last year. Depending on if you have the MEHV version or not might change how you do it. In my case I have the MEHV P400 SE. If you have MEHV system the car actually has a small 48v DC battery that is used for the turbo fan. The cars main electrical system is fed from this 48v system via a 12v dc2dc converter. From that converter a wire goes to your main battery under the passenger seat. All the electronics are under the load space in the back. For my anderson positive connector I attached to the lead off of the 12v dc2dc converter. For the negative wire I initially found a good ground point in the load space to attach to. I eventually routed this back to the battery. Both of these wires I ran through the load space to a hole that went out of the body on the left hand side. There was a rubber plug i needed to remove. I then routed the wires behind the bumper over to the 7pin plug and fashioned up a mount for the anderson plug. One thing I did not like about 7 pin plug and anderson connector was having to get on the ground to plug anything in. I recently moved both to these.

This thread Dual battery has lots of information about where you can grab power and how to route wires.
Here is the post with what I did to move the 7pin and mount my anderson connector

 

“Both of these wires I ran through the load space to a hole that went out of the body on the left hand side. There was a rubber plug i needed to remove. “

Thank you for this post, coming off the DC2DC will be much easier than routing back to the battery. I will also relocate the trailer plug location, it’s a bad location and can get grounded on rough terrain.

2 questions:

Why did you need to reroute the ground back to the battery?

Do you have a picture of the location of the plug you pulled to run the wires to the bumper? I see a couple of plugs used for other wires, I did not see an unused spot.

thanks again.

 

Mainly because my dc2dc draws 50A and wanted to prevent any interference with the cars other electronics.

I don't have a picture of the plug. I believe it is used in Europe for the automatic tow ball electronics.