I've been having an issue on and off and have been to a few electricians who are all scratching their heads. I've also asked people on the dock
, more on that in a second.
My issue is that when I allow the batteries to fall to say 12.1v-12.2v and I go to charge from the engine
combiner I have (A Victron Cyrix 120A-225A) won't allow any charge to flow to the house bank.
The starter battery
gets charged just fine but the combiner won't then open to allow charge to house as well.
As far as I know all the Battery Combiner is doing is waiting until a set voltage for the starter battery and then opening to allow charge to both starter and house.
Now on the dock
a few people have said that if you allow the voltages to drop too low the combiner won't then allow any charge to flow.
This sounds crazy to me as that's exactly the time you need to be able to charge.
Does anyone have any ideas on this? I have GEL batteries and like I say most times things are working fine. It's only when I allow the bank to drop pretty low that I see this issue.
I've also replaced the combiner as the old one had a different fault but the issue still remains.
What's going on?