I bought a Balmar Digital Duo Charge batter-to-battery charger and want to use it as shown in the attached schematic. The switch S2 is used to put the 2 batteries in parallel, in case the starter battery B2 has not enough power. An electronic wizard pointed out to me, that S2 will shorten input and output lead of the B2B charger, which will probably not like this.
I could not find anything on Balmars home page about this problem. Does anybody know if this can cause a problem? If yes, I would have to install a 3rd switch, which I would not like.
I cannot make sense of your diagram.
You will have to show which are connected and which are not.
What do "M" and "G" stand for?
Where is the power supply to the charger? What are your polarities?
What does 12/115V mean? DC/AC ? Is that a convertor?
Your charger should not care how long the input or output leads are, within reason.
Why not move S2 into the equivalent position between Ba1 and the grid?
If not, the charger and generator will always be charging Ba1, and you cannot isolate Ba1.
If Ba1 claps out and is a drain on the system, then Ba2 cannot give its best, nor can the charger or generator be isolated from Ba1.
Otherwise, it looks reasonable to me.
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