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I build it today and it worked but I had to send the charge to one of the left batteries because the 2 at the same time was to much.
I was able to charge one of the primary batteries and kept the...

Thanks all for not having to blow up some components, I see my error, it was late but I see it now.
But I made a modification that should work and charges both left batteries (I hope).

Karel
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I was playing a little with this idear and I figured out a circuit that may work with that 3 batt rotation.
I did not test it it's just a theorethical idear there may be errors in it. Will build it...