Question Isolating coach batteries from house batteries.

[Too Little Too Late]

I called freightliner some time ago and asked them about alternator failures, in particular related to lithium house batteries and they had not heard of any issues.
So I do tend to agree that these are pretty tough units. And to be honest, I have not seen the lithiums pull more than 100 amps across (per the shunt).

While experimenting and trying to get the lithium to play well with others in my coach, I unplugged the combiner and attached the alternator lead to the 460Ah lithium. I started the thing and measured 135 amps from the 170 amp alternator.

 

[Richpatty]

While experimenting and trying to get the lithium to play well with others in my coach, I unplugged the combiner and attached the alternator lead to the 460Ah lithium. I started the thing and measured 135 amps from the 170 amp alternator.

Good data! Something to watch.

I have an all electric rig which came with a 240 amp alternator which gives me a bit more breathing room.

Rich

 

[Trav_lr]

I have a BIM from Precision Circuits installed with FLA chassis batteries and LiFePO4 house batteries. No issues in 3 years