My notch differs to yours, it’s wider and flatter — multipurpose, which allows halyard tails to be led in. I’m not paying you squat, Zonk
Shore power inlet for battery charger
- Thread starter Quickstep192
- Start date
George Dewey
Super Anarchist
Quickstep192
Anarchist
- Thread starter
- #63
So, if using a drop cord, would you use the AC ground or not?
El Borracho
Sam’s friend
I would prefer a charger that does not ground either battery lead. I don’t know why they would do that, but they might. Certainly not necessary for charging. Would seem to violate some electrical “best practices” regarding multiple power ground paths. However, maybe most charger instructions say to isolate the battery to charge. Which of course nobody ever does ever.
phill_nz
Super Anarchist
clearly more than 10% different
begone patent troll
begone patent troll
Rain Man
Super Anarchist
Yes. But I would confirm that there is no continuity between the AC ground and the boat's DC ground, or more importantly any under water metals, which it seems you have done if I am reading your posts correctly. Did I also read that the boat lives on the hard in the winter? If so, then no worries at all.
George Dewey
Super Anarchist
So, the ground prong on the 110VAC cord does not have any continuity to the negative battery terminal or the ground system on the boat.
weightless
Super Anarchist
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Quickstep192
Anarchist
- Thread starter
- #69
On my charger, there is not continuity from the AC ground to the DC negative, BUT, there is a chassis ground that does have continuity to the AC ground. So, if I ground the chassis to the boat’s grounding system, then I’m effectively making a connection between the AC ground and the boat’s grounding system.
The boat is kept on a lift so it’s out of the water unless the tide is super high.
Rain Man
Super Anarchist
Why do you want to connect the chassis ground (presumably the chassis of the charger) to the boat's DC ground? Does the manual for the charger suggest that? If not, I would leave it connected to the AC ground only. This will allow your DC system to float relative to the AC. I can't see any problem with that, but this is getting beyond my expertise in maritime electronics.
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Startracker
Member
The Victron isolators are not technically failsafe. In talking with their techs, they do fail to a safe mode(ground circuit closed) but they didn't test with the required loads to meet ABYC standards(3000A, 34 cycles). I'm comfortable enough with the Victron and regular testing with a meter at half the price of the competition. Short of a lightning strike, I think I'll be alright. Also as a sidenote, an isolator with a status monitor will also be ABYC compliant if it isn't fail-safe from my understanding of the wording in A-28.
[SIZE=9pt]28.6 [/SIZE][SIZE=9pt]STATUS MONITORING[/SIZE]
[SIZE=9pt]28.6.1 The galvanic isolator shall be equipped with an integral or external status monitor that provides an audible or visible indication of failure.[/SIZE]
[SIZE=9pt]Exception: Fail-Safe galvanic isolators[/SIZE]
[SIZE=9pt]28.6 [/SIZE][SIZE=9pt]STATUS MONITORING[/SIZE]
[SIZE=9pt]28.6.1 The galvanic isolator shall be equipped with an integral or external status monitor that provides an audible or visible indication of failure.[/SIZE]
[SIZE=9pt]Exception: Fail-Safe galvanic isolators[/SIZE]
phillysailor
Super Anarchist
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@Zonker, your original description was of a method requiring the use of drills, saw & material removal, which you were altruistically offering because of a personality flaw called “being a nice guy.”
You are now trying to enforce patent rights upon the user of a product neither of you manufactured despite having previously offered said intellectual property without fee.
I am afraid the interwebs cannot tolerate such egregious false patent claims and award the defendant two free ideas. (Penalties waived given your many years of ridiculously valuable service to the community.)
Game on!
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