Lithium upgrade steps?

SMann

Is there a set of steps for upgrading from AGM to Lithium? I searched, and have seen many posts about converting, but not a list of steps. I have a 2022 400 with solar, so I presume I want to do this at night or with the solar panels covered? Also the solar panel and battery have to be disconnected and reconnected in a specific order I think? Should I pull fuses and turn the battery disconnect switch? I have the "AD" WFCO, so I'll probably be wiring the 1k-ohm resistor to force it into Lithium mode. What about the built-in battery level led display—will that just be wrong on lithium, or are there steps to adjust it for the different voltage profile? Oh, and I'll need to set my solar controller for Lithium as well—I guess the default settings work alright? So I know there are several things involved in upgrading, and would be interested in seeing a comprehensive list if it exists.

SMann

Oh, and for storage, I think 50% charge is recommended. Curious how people discharge to 50% and keep it there while stored, or periodically charge then discharge?

qhumberd

@SMann The steps are outlined in this thread below pretty well about the changeover. Similar to what I did in my 2019 400. I have portable solar so no controller built in, but my portable has a Li setting that works fine.

When mine were in, I all I had to do was keep the frig on for a day or so and the SOC dropped to storage level (40-60%) when that was needed. I used a small Li charger to top off on shore power before going on the next trip

https://tab-rv.vanillacommunity.com/discussion/19978/replacing-the-2019-lead-acid-batteries-in-my-t-b-400-with-new-li-batteries