Originally Posted by djmarchand
Had I really wanted to improve the DC system, I would have installed a high output alternator with external regulator like Balmar's, wired it to feed the house battery bank (4- 6v GCs) directly and then charge the starting battery and the thruster battery with a combiner.
I though about doing as you suggest but couldn't justify the cost & work to do it. I don't particularly like the arrangement MS installed w/ start & house batt'ys together. I have considered separating them but the rewiring gets more involved than I cared to take on...for now.
We do spend a few days at a time on the hook but so far have found the current arrangement more than sufficient. I'll run the gen for AM coffee and usually to cook PM and that keeps batt'ys at reasonable SOC.
I generally run with both 8D start/house batt'ys combined with the Sel Sw... My rationale is larger banks stay at higher SOC and are better for the batt'ys.
If I ever run them too low I can fire up Gen set to charge and/or combine Gen batt'y to start main if I'm going to travel and charge via main alt.
Slightly off topic question for you...
Do you have any idea why MS would put fuses on both sides of the thruster batt'y On-Off Sw?
I get putting it one side - and I say the batt'y side of the Sw would be the logical one - but why on both?