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I am using the second battery connection to trickle charge my starter battery when connected to shore power. I have read elsewhere that it may be that both battery banks are somehow cross connected even when ac power is off, so that it is claimed a charged starter can top up depleted domestic banks, which would be unwanted and surprising. Anyone know if thats the case? I don't want the effect of either bank trying to pass charge to the other.
@BobB, which battery connection are you referring to - the second battery connection right next to the first, or the specific trickle-charge spade connection?
The second battery connection that's right next to the first is of course not isolated from the first because -as you can see upon visual inspection- the two connections are using the same contact plate, so they can't be isolated from each other.
So long as you use the dedicated trickle charge spade connection, however, you should not be seeing any cross-communication between the two battery banks.
the connections I'm using are the small pin plug situated between v sense and t sense connections as in the "G" block on the attached image
