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I have (2) circuits on my 19' CC, circuit A connected to engine for starting, power trim etc, Circuit B handles accessories pumps, lights, instruments both powered by Optima Blue Top batteries,
Until this year both were stand alone and every month I would swap positions and recharge depleted circuit B battery. Worked fine but a pain. So this year I installed a Perko 4 position switch and connected both circuits with a common ground. I did not wire the switch in the standard manner, I wired from the engine to position 1 on the switch and then directly to the positive of battery A leaving the switch in the off position.(no connection to the switch main feed connection) this would give me normal scheme for circuit A as before. Battery B is connected to the 2 position on the switch so when I have to charge battery B I move the switch to the 1+ 2 position rather than switch the physical batteries. Basically the 2 batteries in parallel using switch with a common ground being charged by the single alternator.
my questions
1 any problems with the alternator being overloaded, is it load sensitive ? (2 batteries 1 @ 12.7V, 1@ 11.5V) being charged by 1 alternator
2 will switching from position 1 to position 1 + 2 and vice versa present a problem with the engine running or will I have to shut engine before changing mode . The switch manufacturer says these are make before break. Dont think this is revalent
Until this year both were stand alone and every month I would swap positions and recharge depleted circuit B battery. Worked fine but a pain. So this year I installed a Perko 4 position switch and connected both circuits with a common ground. I did not wire the switch in the standard manner, I wired from the engine to position 1 on the switch and then directly to the positive of battery A leaving the switch in the off position.(no connection to the switch main feed connection) this would give me normal scheme for circuit A as before. Battery B is connected to the 2 position on the switch so when I have to charge battery B I move the switch to the 1+ 2 position rather than switch the physical batteries. Basically the 2 batteries in parallel using switch with a common ground being charged by the single alternator.
my questions
1 any problems with the alternator being overloaded, is it load sensitive ? (2 batteries 1 @ 12.7V, 1@ 11.5V) being charged by 1 alternator
2 will switching from position 1 to position 1 + 2 and vice versa present a problem with the engine running or will I have to shut engine before changing mode . The switch manufacturer says these are make before break. Dont think this is revalent
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