I have sent a "technical request" to Relion a couple of days ago regarding this but have not heard anything back. Will post when/if I hear back.
I agree the 5.2 volts is strange. You could be right on the MV doing that for some reason. For now, you are 100% correct about it being a "warm weather machine". If that were the case, Thor should have saved their money and not installed the expensive "LT" batteries. At least it is working when connecting the shore power but I have not personally tested this and don't leave mine plugged in.
Relion has suggested that these batteries are better off not on "float" but seems to be no way to do that in very cold weather. Since yours stays plugged in, seems to be working as it should. At least when plugged in.
I wonder however if you lost power and the batteries got cold and then had to heat up, in if you would loose DC power during the startup/heat process?
Thanks for the reply and still learning quite a bit about how this van does/ or in many cases does not work as it should.
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