I just connected up my Mastervolt high output low rev alternator (I have a low rev Gardner 6cylinder engine) on my vessel and there’s no registering of positive input to the colour control. What I mean is, it only ever reduces in % while under way. Today, after several days off shore power and relying the alternator the batteries went up to 27.9v which is 100% according to the manufacturer. But the colour control says I’ve 0%.
I have 200ah of lithium batteries.
Any thoughts? I did reset the Victron system to factory defaults to see if that would correct it, but no joy.