Charge controller question for lithium batteries.

[BGMAC]

The BIM (Battery Isolator) is programed to bridge house battery and Chassis battery at certain voltages for a set time under specific conditions. These parameters are "hard coded". No networking connection.
From my understanding it works well for its intended purpose.

In the Newmar 2024 DSDP 4311 with LiFe option the BIRD ( a controller and separate bridging solenoid) is connected to the Silverleaf network, is programable to respond to various specs and reports data back to a central controller. Many data points are displayed on a screen in the DSDP living room.
The Bridging solenoid opens and closes based on commends from the controller using data from various inputs around the RV.

This BIRD setup on the DSDP is only on the LIFe option and other models with Silverleaf in the Newmar Lineup.

Thanks for the reply. I to have a bird type system, just not as elaborate as yours it sounds like.

I was going to tie this BIM between the Chassis battery and the BIRD system just as a safety device when the engine/chassis battery is charging the house battery. I’m letting the BIRD do everything else.

 

[BGMAC]

Update:
Here is a picture of the final install. My house batteries were originally out in the open allowing rain road grime rocks etc. to hit the batteries. I made a container around everything as protection using sheet metal. It’s not sealed, but well protected.
I added the BIM on the chassis power line and connected ignition signal & ground. This should protect the chassis battery if the house battery request too many apps by cycling the charge to the house battery when driving.

I figured I lost the DC to DC charge back to the chassis battery when I put the BIM in. Instead of getting a DC to DC controller I just used an AC trickle charger tied to the AC of the RV. I have about 4 laying around the house. Now when I have shore power or generator I will get a trickle charge to the chassis battery. You can see the charger to the left of the lithium battery.