Adding Victron DC to DC charger

[SnextK]

I have an 08 Cayman XL with 4 Battle Born batteries. I want to install a Victron DC2DC charger and am not sure how to wire it. The Big Boy is throwing me a curveball.
Anybody got a picture of your install or a schematic?
Thanks for your help!

[Jon_C]

You need to disable the big boy solenoid from combining your house and chassis banks.

Then install the dc charger to charge the house lithium’s from alternator

[twinboat]

Yes, disabling the big boy is needed and then wire the DC to DC battery charger to the large cables on each side of the big boy.

It will serve as a good juntion point. One large terminal will be chassis battery and the other will be house batteries.

There is no need to look for a alternator wire, that's not what the DC to DC charger connects to.

[Sinyyl]

Are you trying to charge house with alt. or house battery charge start battery? These 2 task need 2 dc dc chargers. I have several of them different types(all Victron) installed.