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Just take an ohmmeter and measure the resistance between the negative terminals of the two batteries. Resistance should be less than one ohm if battery grounds are connected. To make sure you don't damage your voltmeter make sure you measure the voltage between the ground terminals first to make...

I'm confused. If you use an isolated DC-DC charger and you then connect all DC grounds, then you no longer have an isolated system. No harm done otherwise. Are you not connecting house battery ground to starter battery ground? No problem with doing it that way and it will certainly eliminate any...

I can't speak to how your specific boat is wired, but I can say that all DC grounds and AC safety ground should be connected together without any ground loops. I would be very surprised if your boat was wired otherwise. You are correct in assuming that you need a DC-DC converter between the FLA...

Oh yes, there it is. Thank you!

I have a Windows desktop. If I click on the Home tab to go to the home page I see this... No tip jar in upper left, so I think maybe it's behind that ad, so I close the ad and see this... Still no tip jar. Either that or it's in my blind spot. BTW I know these images are small, but the...

Boat trailer under vinyl billboard tarp

Where is the tip jar? I've used it before and now I can't figure out where it is.

Diesel is more fuel efficient yes, but, assuming something like this was available in the 100hp range, one would likely have to contend with two other diesel traits - expensive and heavy. Also, keep in mind that this diesel/electric hybrid drive does not have the fuel efficiency perk of energy...

Wow, yes that changes everything. I was under the impression these motors put out far less at low RPMs.

Of course! Thank you!

That would solve the problem if that's the case. I'll call Garmin on Monday and ask. Thanks.

Yes, but the relay itself draws 3A, and I was just trying to avoid that. I’m concerned about spending lots of hours moseying along at displacement speed and not making much current from the alternator, but still using a lot of it for refrigerator and other things. But it’s likely at those times...

A breaker to turn off a power bus that controls all non-essential electronics with parasitic draws makes sense. i’ll have solar, but won’t always have sun, and then amp-hours become precious.

For those of you that have the Garmin Reactor 40 autopilot with a helm control (GHC 20 or GHC 50), do you have a means for turning it completely off? I'd like to be able to eliminate parasitic draw when I'm boondocking. I'm poring over the GHC 50 manual and there doesn't seem to be a means of...

It learns fast though.

Here's a picture of my trailer covered in a McDonalds billboard ad. I paid $75 for the re-purposed 14'x48' vinyl tarp from http://billboardvinyl.com/ The vinyl is heavier and much more durable than those cheap Home Depot tarps. I've only had it on for eight months, but its held up well through...

tarp

Thank you. Exactly what I was hoping to hear!

I bought a Tempress Probax helm chair and I'm wondering if I should mount it on a slide so my wife can move the chair forward a bit when she's piloting. I have yet to build cabinetry so I have room to do this, but I'm concerned that the control handle on the right side of the seat might...

Port Townsend, WA at start of the 2019 Race to Alaska.