Jeff: An alternator produces AC power, that gets rectified to DC. Many years ago cars/boats had generators, which produced DC. I understand, however, that for most end uses the alternator charges the battery and runs the DC loads, so it appears to be a DC device.
Everything is super great, but the sound is quite distorted. As a sound engineer it hurts my heart (ear) when the content and the presentation in the seminar I absolutely top class! It's the same with the previous seminars in this serie, so just turn down the recording level a bit and everything will be perfect. Thanks for all the great info!
So what are the downsides with going AGM with a stock 55amp internally regulated alternator? Am I dramatically limiting the battery life? If I charge with a shore power marine AGM charger every once in a while is that good enough to help them last?
With regards to the Honda generator, couldn't you connect it to a normal automotive battery charger and use it to charge the batteries. This avoided tying it to the on board electrical system and the floating ground issue.
Great videos and advice Jeff, love your passion and know how. I have what might seem a stupid question to you. The Victrom MPPT Controllers have a ground option on the aluminum heat sinks. Does this have to be grounded on a boat? Thank you in advance for your input. Regards, Adriano
Awesome content. When you say the Honda generators are essentially running a 2 wire system, does that mean when using the 30amp plug on a portable generator the ground wire of the generator cable would basically not be doing its job? I have a little bass boat and want to run some lights and a charger off the generator and the thought of not being grounded doesn’t sit as well with me as it does with a lot of guys running lights.
If you have a portable generator with a neutral bonded ground and then run to an A/C circuit breaker panel, would that create an effective grounding system to run on a boat??
Hi Sam, some folks definitely know those Honda generators more then i do and might want to weigh in here. That said, yes most Honda suitcase generators aren't grounded.
I have a Honda EB2200i that I use on my boat. I specifically purchased that model because it has a bonded neutral. I also converted it to run on propane, since I already carry propane and didn’t want to carry gasoline. I plug it into my shore power receptacle and the reverse polarity alarm does not light up.
Would it be a better idea if you want to use the portable Honda Generator and connect it through an isolation transformer and then on the output side of the transformer tie the neutral and ground together and run this to the boat electrical system just like your would shore power?
I have a Xantrex 25 that charges both the house and start batteries. The house batteries are just about toast and I’d like to install AGM’s but not on the start side (yet). I have a Dual Pro PS4 charger that I would like to use to charge AGM’s. Will this be possible to do with any semblance of simplicity?
I am great full to be able learn for free from you videos . My boat project is bet more complicated and I didn't find to much to make me sure I am on right track. Could you Jeff or somebody do some predictions about my creation.I live off grit in mounting forest in 40 feet monster RV . My electric come from sun , I am please which send up but panels have not enough sun.well I can't cut trees on neighboring property but I can move panels back one forward using my boat trailer by building panels on top of boat. I also like idea power my boat by thous solar panels. What I did so far: I bought 6 panels 36 Volt each 300 watt each( were chip $50.00 each) but I have to carry them 1000 miles on ruf of my Buick Regal (they weight 60 pound each).there will be 2 s independent panels ( 3 panels) they will tilt.I bough 60 amp 36 volt inverter and MPPT 60 amp controller (12 V-48 V),and 12 golf cart batteries ( thanks to President Tromp).I am going use 72 Volt motor and mechanical transition from small in town use pickup .I need find switch connecting 2 36 Volt panel too my inverter and to connect 2 panels in order to have 72 volt for boat motor.Will this work? The boat is Intruder trimaran tipped, wide same like panels in lends panel will extend 1 feet in bow and 1 feet in stern.When panels at horizontal man can walk under ,batteries motor and train will be built in one line to work as kill .Thank you for reading ,apologize for English .Tomislav Branimir
In the beginning your discussing alternators and stating that an alternator output is a direct function of rotation speed. You state "car alternators are wounded to only have high output at high RPM; because who drives a car at 30 km/h". I think the analogy you are using is wrong. Comparing a car engine to a boat isnt very different because when a car is running at 30km/h vs 60km/h could actually be identical rotational speed(rpm) that the alternator sees. How can we justify spending $600-$800+ on a "marine" alternator when realistically, the gearing of a car is a what reduces the RPM's. The RPM's running at 30km/h vs 60km/h or 90km/h can in fact be the same RPMs because you are in different gearing.
Hi Jordan, thanks for your interesting points. On boats, engines don't have any gears, they simply rotate faster or slower and the RPM of the engine correlates directly to alternator output.
@@PacificYachtSystems Thanks for the response. That is the point I was trying to make. In a car, RPM's do not correlate to speed which is what it sounded like Jeff was indicating. Because in a car, we can get to 90 KPH while never exceeding 2000 RPMS because of gearing. It makes me believe that car alternators are in fact closer to design I do believe that marine alternators are worth the money purely for the build quality IMO.
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Jeff: An alternator produces AC power, that gets rectified to DC. Many years ago cars/boats had generators, which produced DC. I understand, however, that for most end uses the alternator charges the battery and runs the DC loads, so it appears to be a DC device.
Hi Bruce, your absolutely correct. But since the input and output of the alternator is DC, we commonly refer to it as a DC power source.
Thank you for all your great videos, always enjoy them. Can you put an external regulator on an outboard engine?
Hi Mike, never done it, but in theory yes.
Everything is super great, but the sound is quite distorted. As a sound engineer it hurts my heart (ear) when the content and the presentation in the seminar I absolutely top class! It's the same with the previous seminars in this serie, so just turn down the recording level a bit and everything will be perfect. Thanks for all the great info!
Good point. We'll get better next time!
So what are the downsides with going AGM with a stock 55amp internally regulated alternator? Am I dramatically limiting the battery life? If I charge with a shore power marine AGM charger every once in a while is that good enough to help them last?
Thank you for clarifying the issue of whether or not to bring my Honda generator onto my boat. Like yours, it will stay at the house.
Right on
Should I shut off my inverter when away from the dock and I am not using an ac device?
With regards to the Honda generator, couldn't you connect it to a normal automotive battery charger and use it to charge the batteries. This avoided tying it to the on board electrical system and the floating ground issue.
Great videos and advice Jeff, love your passion and know how. I have what might seem a stupid question to you. The Victrom MPPT Controllers have a ground option on the aluminum heat sinks. Does this have to be grounded on a boat? Thank you in advance for your input. Regards, Adriano
Won't hurt to have those controllers grounded.
@@PacificYachtSystems Thank you!
Awesome content. When you say the Honda generators are essentially running a 2 wire system, does that mean when using the 30amp plug on a portable generator the ground wire of the generator cable would basically not be doing its job? I have a little bass boat and want to run some lights and a charger off the generator and the thought of not being grounded doesn’t sit as well with me as it does with a lot of guys running lights.
If you have a portable generator with a neutral bonded ground and then run to an A/C circuit breaker panel, would that create an effective grounding system to run on a boat??
Hi Sam, some folks definitely know those Honda generators more then i do and might want to weigh in here. That said, yes most Honda suitcase generators aren't grounded.
I have a Honda EB2200i that I use on my boat. I specifically purchased that model because it has a bonded neutral. I also converted it to run on propane, since I already carry propane and didn’t want to carry gasoline. I plug it into my shore power receptacle and the reverse polarity alarm does not light up.
Would it be a better idea if you want to use the portable Honda Generator and connect it through an isolation transformer and then on the output side of the transformer tie the neutral and ground together and run this to the boat electrical system just like your would shore power?
Good idea Terry, that way you won't have a ground issue.
I have a Xantrex 25 that charges both the house and start batteries. The house batteries are just about toast and I’d like to install AGM’s but not on the start side (yet). I have a Dual Pro PS4 charger that I would like to use to charge AGM’s. Will this be possible to do with any semblance of simplicity?
Can you use a 230v. inverter/ charger at 120v. ? Victron Multi Plus says 16A - 230v....does that mean everything in between?
Don't think so. When we buy and install Victron inverter/chargers we buy them for a specific voltage and frequency.
@@PacificYachtSystems thanks for the reply...your videos are extremely helpful
Thanks
Is that belt recommendation (serpentine belt above 90A) based on 12V, 24V, or doesn't matter?
Good question, 90 amps on 12 VDC alternator.
what about the new integral DC generators attached tothe boats engine?
A definite option. We haven't installed one yet. We'll write up about it when we have first hand experience.
I am great full to be able learn for free from you videos . My boat project is bet more complicated and I didn't find to much to make me sure I am on right track. Could you Jeff or somebody do some predictions about my creation.I live off grit in mounting forest in 40 feet monster RV . My electric come from sun , I am please which send up but panels have not enough sun.well I can't cut trees on neighboring property but I can move panels back one forward using my boat trailer by building panels on top of boat. I also like idea power my boat by thous solar panels. What I did so far: I bought 6 panels 36 Volt each 300 watt each( were chip $50.00 each) but I have to carry them 1000 miles on ruf of my Buick Regal (they weight 60 pound each).there will be 2 s independent panels ( 3 panels) they will tilt.I bough 60 amp 36 volt inverter and MPPT 60 amp controller (12 V-48 V),and 12 golf cart batteries ( thanks to President Tromp).I am going use 72 Volt motor and mechanical transition from small in town use pickup .I need find switch connecting 2 36 Volt panel too my inverter and to connect 2 panels in order to have 72 volt for boat motor.Will this work? The boat is Intruder trimaran tipped, wide same like panels in lends panel will extend 1 feet in bow and 1 feet in stern.When panels at horizontal man can walk under ,batteries motor and train will be built in one line to work as kill .Thank you for reading ,apologize for English .Tomislav Branimir
In the beginning your discussing alternators and stating that an alternator output is a direct function of rotation speed. You state "car alternators are wounded to only have high output at high RPM; because who drives a car at 30 km/h". I think the analogy you are using is wrong. Comparing a car engine to a boat isnt very different because when a car is running at 30km/h vs 60km/h could actually be identical rotational speed(rpm) that the alternator sees. How can we justify spending $600-$800+ on a "marine" alternator when realistically, the gearing of a car is a what reduces the RPM's. The RPM's running at 30km/h vs 60km/h or 90km/h can in fact be the same RPMs because you are in different gearing.
Hi Jordan, thanks for your interesting points. On boats, engines don't have any gears, they simply rotate faster or slower and the RPM of the engine correlates directly to alternator output.
@@PacificYachtSystems Thanks for the response. That is the point I was trying to make. In a car, RPM's do not correlate to speed which is what it sounded like Jeff was indicating. Because in a car, we can get to 90 KPH while never exceeding 2000 RPMS because of gearing. It makes me believe that car alternators are in fact closer to design
I do believe that marine alternators are worth the money purely for the build quality IMO.