How to best connect 2 batteries on a boat with 12v auto charger in the game and battery switch (1,2, 1&2 and off). Guess I will need some sort of a relay or diode?
Thanks for any hint.
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How to best connect 2 batteries on a boat with 12v auto charger in the game and battery switch (1,2, 1&2 and off). Guess I will need some sort of a relay or diode?
Thanks for any hint.
OK, sounds like easy to do, I was planing to put a relay in so either the solar or the automatic charger is connected so I would not have voltage on the cable outside if the Solar is not connected and the charger is plugged in or the batteries are on.
Thanks
Thorsten
Yeh, Your solar panel cables 'outside' will always have V on them under sunlight even if not producing. No current will feedback through the mppt, so it's not as though you have batt power (amps) available there.
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