I have a pair of 2005 200 HPDI engines rigged to 2 batteries with 2 battery switches. Stbd battery runs on position 1 on switch 1 and port battery on position 2 on 2nd battery switch for normal use. I was told this would isolate each battery and I've never had a power problem on the water. Both batteries are connected to a "smart" charger when the boat is not in use. I run group 27 wet cell combined deep cycle/starting batteries with the highest CCA I can find (Interstate). The radio and GPS/sonar runs off of panel directly connected to battery #2.
I just found out there is a an auxiliary charging circuit option on my engines. I would like to add a 3rd battery for house use as I plan on adding a second sonar unit, radio and USB charging outlet. Will that work with the aux circuit? Should both engines be connected via the aux circuit to the 3rd house battery? If both engine batteries died and I want to use the house battery for starting, how should it be wired or would it just be easier to use jumper cables?
Forgive my ignorance on the topic. I am not the handiest guy with a wrench. Up till now, I have just paid to have work done on the boat & engines, but now that I'm retired, I'd like to learn more about maintaining the boat and engines.
I just found out there is a an auxiliary charging circuit option on my engines. I would like to add a 3rd battery for house use as I plan on adding a second sonar unit, radio and USB charging outlet. Will that work with the aux circuit? Should both engines be connected via the aux circuit to the 3rd house battery? If both engine batteries died and I want to use the house battery for starting, how should it be wired or would it just be easier to use jumper cables?
Forgive my ignorance on the topic. I am not the handiest guy with a wrench. Up till now, I have just paid to have work done on the boat & engines, but now that I'm retired, I'd like to learn more about maintaining the boat and engines.
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