Upgrading to Lithium Battery Isolator Question

[opalfrost98g]

Greetings from SC,

Im starting my lithium upgrade and have come to the BIM issue. I have a 12-24 v Victron battery charger to install in place of the BIM, I think thats what needs to happen anyway.. but there is another device in the electrical bay that Im not familiar with. Can anyone advise on what the device is to the left of the BIM and what I have to do to make this work?
The picture is showing upside down..I dont know why?

[redbaron73]

This is the salesman switch isolater...aka coach battery disconnect by entry door.

[opalfrost98g]

Aha, thank you redbaron! I suspected as much, is the salesman circuit source from the Chassis side and is it isolated from the house battery side? I guess what Im asking is if the BIM is the only place where the House and Chassis can connect? If that is the case then it will be easy to just install the DC to DC charger between the two battery systems and just disconnect the control wires from the BIM?

[redbaron73]

Yes,the BIM is the only place where they connect. You will see the join on house side to the disconnect when you remove the BIM

[opalfrost98g]

Wow, thank you redbaron, my mind is now at ease!! Ill post back a pic of before and after install of the Charger. Thanks again..