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My 50DN is 12V for house. Lithionics cautioned me that because of the low internal resistance of Li, they can draw an enormous amount of current and overheat cables and alternators. New RVs use temperature-sensing regulation to mitigate this. Also didn’t want to feed the bank with a raw charge and no Li-compatible regulation.
As a result, my 50DN is not attached. I can only charge my house bank with Shore/Gen through my inverter. It’s a PITA, but I assumed Victron would eventually catch up.