Charge controller question for lithium batteries.

[TheLooks]

I watch Zero tiktok. Have watched a bunch of his youtube stuff.

 

[BGMAC]

Just an update;
Even though I made the upgrade doesn’t mean I don’t stop listening and reading. One was changing out to Lithium could have an adverse effect on my SDC-107A Battery Control Center charging my chassis battery. It could burn out a relay. There was a recommended adjustment to to to adjust when the chassis battery gets charged from the control center while on shore power. I made that change.

I also read about over taxing the alternator when the chassis battery charges a very low house battery. Knowing this I can run my generator for a while while driving, but I also adding a battery isolation manager. It will cycle charging to prevent overheating the alternator.

 

[Joe Dutchstar]

A suggestion, make sure you understand your electrical system before making changes.
Installed one of these BIM units only to find out it was not compatible with the RV electrical system.
Nothing wrong with this unit but does not work everywhere.

My RV has a networked BIRD, not a stand alone BIM.

A moderately priced education for me.

 

[BGMAC]

A suggestion, make sure you understand your electrical system before making changes.
Installed one of these BIM units only to find out it was not compatible with the RV electrical system.
Nothing wrong with this unit but does not work everywhere.

My RV has a networked BIRD, not a stand alone BIM.

A moderately priced education for me.

What do you mean "Not Compatible"? What did it do or not do?

 

[Joe Dutchstar]

What do you mean "Not Compatible"? What did it do or not do?

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.

 

[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.