Charging parallelled 12v car batteries "in situ"
charles brought next idea :
No we used diodes without the relay. later we just used the relay. Never
both together,
I cannot recall the full details, but...
I once devised a scheme which did use diodes on a car. Charging was via
diodes, to two batteries. I had set the generator regulator to around
1v higher to over come the diode forward loss.
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