Orion Tr Smart 12/12 30A non isolated suddenly charging low

Hi Everyone,

Until recently, I was charing while driving roughly between 18A and 27A, therefore quite ok. I know it's not 30A, but apparently nothing alarming from what I read here and there.

I had one night of very cold weather - -20°C - in Norway and in the morrning, the battery dropped to 4° (therefore could not be charged at that temperature) and a warning that one cell dropped below the recommended voltage or something like that.

I obviously immediately turned on the engine to charge the battery, which temperature increased to 5° and therefore could be charged.

The battery charged well up to 100% that day and even was rebalanced, therefore I did not worry. However, since then, the battery is only charging between 5A and 10A which is really low and worries me a little. It seems that the Orion Tr Smart 12/12 30A does not draw sufficient current. I am not so sure why would that be, and why would it change from a week ago since I did not touch anything.

Would anyone have faced the same issue, or would know what might have happened here and what should I do?

I have the following items installed in my RV: