Tuesday, July 31, 2012

Re: [Electric Boats] Electric Boat Video with Jean-Michell Cousteau

 

Fantastic.  Have you noticed any issues when sailing with that solar mount?  It seems like it would catch a lot of wind in heavier weather.  Sure looks like it would catch a lot of sunshine up there too!

Thanks for sharing. 

Roland
s/v Miss Teak

Sent from my iPad

On Jul 31, 2012, at 6:31 PM, "James" <james@toolboat.com> wrote:

 

Hi All,

I thought you might enjoy this new video that we took on Kapowai with Jean-Michell. Many of the benefits of electric propulsion are explained.

https://www.youtube.com/watch?v=BgH5EW7Zngo&feature=plcp

Kapowai has now been unplugged for 8 months!

Complete energy independence and she is always ready to go!

Solar Power is not only a very potent source of energy, it is an AGM's batteries best friend. The batteries are now going on 7 years old and are in great shape. The daily voltage bump without staying on float all day is the answer.

Cheers,

James

Propulsion Marine
www.propulsionmarine.com

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Posted by at No comments:

[Electric Boats] Re: Charging battery bank while underway..

 

If there's no mistake on Chris' question, I think it is feasible for Chris to use the generator to charge the battery and run the motor in the same time. In fact, a plug-in hybrid vehicle or a range-extended HEV works under the same way. Of course, professional design on the controller is necessary.
 
Unlike using the gas generator, this hybrid solution can extend the range of sailing while minimize the pollution emission caused by the gas generator. This is the best way for those who are interested in electric drive.
 
To minimize the total weight, lightweight LiPo batteries can be used. The most fantastic way is to use a hydrogen fuel cell which works like a gas generator except that it uses hygrogen as fuel (electrochemical reaction) and emits water (H2+O2--->H2O) only. But it is really too difficult and expensive for an individual application.

--- 12年7月30日，周一, james4078 <james4078@yahoo.com> 写道：

发件人: james4078 <james4078@yahoo.com>
主题: [Electric Boats] Re: Charging battery bank while underway..
收件人: electricboats@yahoogroups.com
日期: 2012年7月30日,周一,下午5:18

 
I have not heard anything new tech yet.
Buy a gas outboard is not my idea of a good solution.
I am not to fond of the gas generator either, I do like the solar idea but still wanting something new and outside the box type thinking.
I once read an article on an elector-magnetic generator, basically using coils and transformers to overlap the electric energy field to multiply the input energy and get more out than is put in. I know it is untested in the field but it is out there. There is a guy up in Canada that has made a hydrogen generator for his boat... a little pricey but no moving parts and no pollution at all.
I am also working on some zero-point energy devices myself to put into my boat so I can recharge my batteries e-route. If you think about it a little bit... most cruise ships and trains run a diesel generator to power their electric drive system so it is possible... we just need to shrink down that technology and make it affordable.

--- In electricboats@yahoogroups.com, "cober_chris" <cober_chris@...> wrote:
>
> Thanks Roland (and to the others who responded). It's good hear others have done similar things.
>
> My dad and I are planning to build our boat over this winter/spring 2013. Will definitely post pictures and specs when finished.
>
> Chris
>
> --- In electricboats@yahoogroups.com, "rolandandgerry" <rolandrodriguez@> wrote:
> >
> >
> >
> > Hey Chris,
> >
> > You can definitely charge underway. A lot of people use small generators such as the Honda eu2000i to supplement other charging sources such as solar/wind/prop regen while underway. Just a thought, depending on your budget a simpler solution to your needs might be one of the Torqueedo products. I use one for my dinghy and it would definitely push a boat of the size you're thinking well past the range you've got in mind. All up it weighs around 35lbs, lithium battery included, or get one of the models which are powered by your own batteries and then you can charge underway using the method of your choice and increase range with a larger battery bank as needed.
> >
> > Would love to hear how your project turns out.
> >
> > Regards,
> >
> > Roland
> > s/v Miss Teak
> >
> > --- In electricboats@yahoogroups.com, "cober_chris" <cober_chris@> wrote:
> > >
> > > Hi folks, I've posted this a couple of places, but I think I may have finally found a good forum for this question:
> > >
> > > I'm designing a small electric boat, because I like quiet slow cruising, and aim to use it in small Ontario lakes and the Trent Severn canal system. 18-20 feet long, 4 foot beam, for 4 or 5 people. Basically an oversized canoe, very light (less than 500 pounds including batteries, I hope).
> > >
> > > I was thinking that the easiest way to do the electric propulsion would be to use all off-the-shelf stuff from BassPro shops.
> > >
> > > Here is my plan right now:
> > > - Minn Kota 24V trolling motor, maybe 80#
> > > - 2 batteries (or 4 smaller ones if it made more sense, see below)
> > > - Minn Kota onboard charger (2 or 4 bank, 15 amps per bank)
> > >
> > > What I'm looking for is a light boat (as few batteries as possible) with 2 or 3 hours of cruising time via the battery bank, with the ability to extend my range occasionally with a 1200 watt generator. Of course, I can charge at the dock/campsite/lock with an onboard charger and generator, but here's the question:
> > >
> > > Can I charge a single battery bank on-the-go, while using it? Say I want to keep going for most of the day, would it be possible to start the generator up on the water, and have it charge the batteries while I keep going? Or is that not a good idea?
> > >
> > > I'm thinking my boat would chug along ok on 500 watts (guessing), and a 2 bank charger can put about 400 watts back into the batteries in bulk charge mode. A 4 bank charger (15 amps x 4) would put over 800 watts into the batteries in bulk charge. That would certainly be enough to continue cruising with my canoe.
> > >
> > > I know there are also safety considerations, I'm thinking to install the generator in a sound-insulated box on the transom, with a blower for ventilation, and with grounding.
> > >
> > > Is this silly? I posted on one general boating forum, and the majority of responses were "get a gas outboard". Any ideas appreciated.
> > >
> >
>

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Posted by at No comments:

[Electric Boats] Electric Boat Video with Jean-Michell Cousteau

 

Hi All,

I thought you might enjoy this new video that we took on Kapowai with Jean-Michell. Many of the benefits of electric propulsion are explained.

https://www.youtube.com/watch?v=BgH5EW7Zngo&feature=plcp

Kapowai has now been unplugged for 8 months!

Complete energy independence and she is always ready to go!

Solar Power is not only a very potent source of energy, it is an AGM's batteries best friend. The batteries are now going on 7 years old and are in great shape. The daily voltage bump without staying on float all day is the answer.

Cheers,

James

Propulsion Marine
www.propulsionmarine.com

__._,_.___
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__,_._,___
Posted by at No comments:

RE: [Electric Boats] Re: Charging battery bank while underway..

 

Yeah, let’s nip the Zero Point Energy and perpetual motion stuff in the bud now on this thread…any substantive discussion in that area risks wasting your time in posting and losing posting privileges.  This group isn’t the forum for those discussions.

Thanks.

-Moderator

 

From: electricboats@yahoogroups.com [mailto:electricboats@yahoogroups.com] On Behalf Of Roland Rodriguez
Sent: Tuesday, July 31, 2012 3:26 PM
To: electricboats@yahoogroups.com
Subject: Re: [Electric Boats] Re: Charging battery bank while underway..

 

 

Getting "more out than is put in" violates the laws of thermodynamics.  I'd be interested in reading about it though if you can point me to the article.  Perhaps there are substantial efficiencies which can be gained by incorporating whatever ideas the article is putting forth.

 

Regards,

 

Roland

 

On Mon, Jul 30, 2012 at 2:18 AM, james4078 <james4078@yahoo.com> wrote:

 

I have not heard anything new tech yet.
Buy a gas outboard is not my idea of a good solution.
I am not to fond of the gas generator either, I do like the solar idea but still wanting something new and outside the box type thinking.
I once read an article on an elector-magnetic generator, basically using coils and transformers to overlap the electric energy field to multiply the input energy and get more out than is put in. I know it is untested in the field but it is out there. There is a guy up in Canada that has made a hydrogen generator for his boat... a little pricey but no moving parts and no pollution at all.
I am also working on some zero-point energy devices myself to put into my boat so I can recharge my batteries e-route. If you think about it a little bit... most cruise ships and trains run a diesel generator to power their electric drive system so it is possible... we just need to shrink down that technology and make it affordable.


--- In electricboats@yahoogroups.com, "cober_chris" <cober_chris@...> wrote:
>

> Thanks Roland (and to the others who responded). It's good hear others have done similar things.
>
> My dad and I are planning to build our boat over this winter/spring 2013. Will definitely post pictures and specs when finished.
>
> Chris
>

> --- In electricboats@yahoogroups.com, "rolandandgerry" <rolandrodriguez@> wrote:
> >
> >
> >
> > Hey Chris,
> >
> > You can definitely charge underway. A lot of people use small generators such as the Honda eu2000i to supplement other charging sources such as solar/wind/prop regen while underway. Just a thought, depending on your budget a simpler solution to your needs might be one of the Torqueedo products. I use one for my dinghy and it would definitely push a boat of the size you're thinking well past the range you've got in mind. All up it weighs around 35lbs, lithium battery included, or get one of the models which are powered by your own batteries and then you can charge underway using the method of your choice and increase range with a larger battery bank as needed.
> >
> > Would love to hear how your project turns out.
> >
> > Regards,
> >
> > Roland
> > s/v Miss Teak
> >
> > --- In electricboats@yahoogroups.com, "cober_chris" <cober_chris@> wrote:
> > >
> > > Hi folks, I've posted this a couple of places, but I think I may have finally found a good forum for this question:
> > >
> > > I'm designing a small electric boat, because I like quiet slow cruising, and aim to use it in small Ontario lakes and the Trent Severn canal system. 18-20 feet long, 4 foot beam, for 4 or 5 people. Basically an oversized canoe, very light (less than 500 pounds including batteries, I hope).
> > >
> > > I was thinking that the easiest way to do the electric propulsion would be to use all off-the-shelf stuff from BassPro shops.
> > >
> > > Here is my plan right now:
> > > - Minn Kota 24V trolling motor, maybe 80#
> > > - 2 batteries (or 4 smaller ones if it made more sense, see below)
> > > - Minn Kota onboard charger (2 or 4 bank, 15 amps per bank)
> > >
> > > What I'm looking for is a light boat (as few batteries as possible) with 2 or 3 hours of cruising time via the battery bank, with the ability to extend my range occasionally with a 1200 watt generator. Of course, I can charge at the dock/campsite/lock with an onboard charger and generator, but here's the question:
> > >
> > > Can I charge a single battery bank on-the-go, while using it? Say I want to keep going for most of the day, would it be possible to start the generator up on the water, and have it charge the batteries while I keep going? Or is that not a good idea?
> > >
> > > I'm thinking my boat would chug along ok on 500 watts (guessing), and a 2 bank charger can put about 400 watts back into the batteries in bulk charge mode. A 4 bank charger (15 amps x 4) would put over 800 watts into the batteries in bulk charge. That would certainly be enough to continue cruising with my canoe.
> > >
> > > I know there are also safety considerations, I'm thinking to install the generator in a sound-insulated box on the transom, with a blower for ventilation, and with grounding.
> > >
> > > Is this silly? I posted on one general boating forum, and the majority of responses were "get a gas outboard". Any ideas appreciated.
> > >
> >
>

 

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Posted by at No comments:

Re: [Electric Boats] Re: Charging battery bank while underway..

 

Getting "more out than is put in" violates the laws of thermodynamics.  I'd be interested in reading about it though if you can point me to the article.  Perhaps there are substantial efficiencies which can be gained by incorporating whatever ideas the article is putting forth.


Regards,

Roland

On Mon, Jul 30, 2012 at 2:18 AM, james4078 <james4078@yahoo.com> wrote:
 

I have not heard anything new tech yet.
Buy a gas outboard is not my idea of a good solution.
I am not to fond of the gas generator either, I do like the solar idea but still wanting something new and outside the box type thinking.
I once read an article on an elector-magnetic generator, basically using coils and transformers to overlap the electric energy field to multiply the input energy and get more out than is put in. I know it is untested in the field but it is out there. There is a guy up in Canada that has made a hydrogen generator for his boat... a little pricey but no moving parts and no pollution at all.
I am also working on some zero-point energy devices myself to put into my boat so I can recharge my batteries e-route. If you think about it a little bit... most cruise ships and trains run a diesel generator to power their electric drive system so it is possible... we just need to shrink down that technology and make it affordable.


--- In electricboats@yahoogroups.com, "cober_chris" <cober_chris@...> wrote:
>
> Thanks Roland (and to the others who responded). It's good hear others have done similar things.
>
> My dad and I are planning to build our boat over this winter/spring 2013. Will definitely post pictures and specs when finished.
>
> Chris
>
> --- In electricboats@yahoogroups.com, "rolandandgerry" <rolandrodriguez@> wrote:
> >
> >
> >
> > Hey Chris,
> >
> > You can definitely charge underway. A lot of people use small generators such as the Honda eu2000i to supplement other charging sources such as solar/wind/prop regen while underway. Just a thought, depending on your budget a simpler solution to your needs might be one of the Torqueedo products. I use one for my dinghy and it would definitely push a boat of the size you're thinking well past the range you've got in mind. All up it weighs around 35lbs, lithium battery included, or get one of the models which are powered by your own batteries and then you can charge underway using the method of your choice and increase range with a larger battery bank as needed.
> >
> > Would love to hear how your project turns out.
> >
> > Regards,
> >
> > Roland
> > s/v Miss Teak
> >
> > --- In electricboats@yahoogroups.com, "cober_chris" <cober_chris@> wrote:
> > >
> > > Hi folks, I've posted this a couple of places, but I think I may have finally found a good forum for this question:
> > >
> > > I'm designing a small electric boat, because I like quiet slow cruising, and aim to use it in small Ontario lakes and the Trent Severn canal system. 18-20 feet long, 4 foot beam, for 4 or 5 people. Basically an oversized canoe, very light (less than 500 pounds including batteries, I hope).
> > >
> > > I was thinking that the easiest way to do the electric propulsion would be to use all off-the-shelf stuff from BassPro shops.
> > >
> > > Here is my plan right now:
> > > - Minn Kota 24V trolling motor, maybe 80#
> > > - 2 batteries (or 4 smaller ones if it made more sense, see below)
> > > - Minn Kota onboard charger (2 or 4 bank, 15 amps per bank)
> > >
> > > What I'm looking for is a light boat (as few batteries as possible) with 2 or 3 hours of cruising time via the battery bank, with the ability to extend my range occasionally with a 1200 watt generator. Of course, I can charge at the dock/campsite/lock with an onboard charger and generator, but here's the question:
> > >
> > > Can I charge a single battery bank on-the-go, while using it? Say I want to keep going for most of the day, would it be possible to start the generator up on the water, and have it charge the batteries while I keep going? Or is that not a good idea?
> > >
> > > I'm thinking my boat would chug along ok on 500 watts (guessing), and a 2 bank charger can put about 400 watts back into the batteries in bulk charge mode. A 4 bank charger (15 amps x 4) would put over 800 watts into the batteries in bulk charge. That would certainly be enough to continue cruising with my canoe.
> > >
> > > I know there are also safety considerations, I'm thinking to install the generator in a sound-insulated box on the transom, with a blower for ventilation, and with grounding.
> > >
> > > Is this silly? I posted on one general boating forum, and the majority of responses were "get a gas outboard". Any ideas appreciated.
> > >
> >
>


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Monday, July 30, 2012

Re: [Electric Boats] Re: New Guy's First Post

 

Thanks for the encouragement I looked at your blog thank for the good info. My next task is to remove my rusty coupling off the shaft that was connected to the atomic 4

Bob

Sent from my iPad

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[Electric Boats] Re: Charging battery bank while underway..

 

I have not heard anything new tech yet.
Buy a gas outboard is not my idea of a good solution.
I am not to fond of the gas generator either, I do like the solar idea but still wanting something new and outside the box type thinking.
I once read an article on an elector-magnetic generator, basically using coils and transformers to overlap the electric energy field to multiply the input energy and get more out than is put in. I know it is untested in the field but it is out there. There is a guy up in Canada that has made a hydrogen generator for his boat... a little pricey but no moving parts and no pollution at all.
I am also working on some zero-point energy devices myself to put into my boat so I can recharge my batteries e-route. If you think about it a little bit... most cruise ships and trains run a diesel generator to power their electric drive system so it is possible... we just need to shrink down that technology and make it affordable.

--- In electricboats@yahoogroups.com, "cober_chris" <cober_chris@...> wrote:
>
> Thanks Roland (and to the others who responded). It's good hear others have done similar things.
>
> My dad and I are planning to build our boat over this winter/spring 2013. Will definitely post pictures and specs when finished.
>
> Chris
>
> --- In electricboats@yahoogroups.com, "rolandandgerry" <rolandrodriguez@> wrote:
> >
> >
> >
> > Hey Chris,
> >
> > You can definitely charge underway. A lot of people use small generators such as the Honda eu2000i to supplement other charging sources such as solar/wind/prop regen while underway. Just a thought, depending on your budget a simpler solution to your needs might be one of the Torqueedo products. I use one for my dinghy and it would definitely push a boat of the size you're thinking well past the range you've got in mind. All up it weighs around 35lbs, lithium battery included, or get one of the models which are powered by your own batteries and then you can charge underway using the method of your choice and increase range with a larger battery bank as needed.
> >
> > Would love to hear how your project turns out.
> >
> > Regards,
> >
> > Roland
> > s/v Miss Teak
> >
> > --- In electricboats@yahoogroups.com, "cober_chris" <cober_chris@> wrote:
> > >
> > > Hi folks, I've posted this a couple of places, but I think I may have finally found a good forum for this question:
> > >
> > > I'm designing a small electric boat, because I like quiet slow cruising, and aim to use it in small Ontario lakes and the Trent Severn canal system. 18-20 feet long, 4 foot beam, for 4 or 5 people. Basically an oversized canoe, very light (less than 500 pounds including batteries, I hope).
> > >
> > > I was thinking that the easiest way to do the electric propulsion would be to use all off-the-shelf stuff from BassPro shops.
> > >
> > > Here is my plan right now:
> > > - Minn Kota 24V trolling motor, maybe 80#
> > > - 2 batteries (or 4 smaller ones if it made more sense, see below)
> > > - Minn Kota onboard charger (2 or 4 bank, 15 amps per bank)
> > >
> > > What I'm looking for is a light boat (as few batteries as possible) with 2 or 3 hours of cruising time via the battery bank, with the ability to extend my range occasionally with a 1200 watt generator. Of course, I can charge at the dock/campsite/lock with an onboard charger and generator, but here's the question:
> > >
> > > Can I charge a single battery bank on-the-go, while using it? Say I want to keep going for most of the day, would it be possible to start the generator up on the water, and have it charge the batteries while I keep going? Or is that not a good idea?
> > >
> > > I'm thinking my boat would chug along ok on 500 watts (guessing), and a 2 bank charger can put about 400 watts back into the batteries in bulk charge mode. A 4 bank charger (15 amps x 4) would put over 800 watts into the batteries in bulk charge. That would certainly be enough to continue cruising with my canoe.
> > >
> > > I know there are also safety considerations, I'm thinking to install the generator in a sound-insulated box on the transom, with a blower for ventilation, and with grounding.
> > >
> > > Is this silly? I posted on one general boating forum, and the majority of responses were "get a gas outboard". Any ideas appreciated.
> > >
> >
>

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Sunday, July 29, 2012

Re: [Electric Boats] Re: PWM output measuring

 

I agreee use any measuring device ahead of the speed control.

Complexity need not be part of the equation - the motor and esc are essentially a single unit of load and conumption patterns and the stress on the battery especially under part load.

You can buy a 70v 180 amp logger for under 100 dollars. Down load it to your lap top or record direct and have volts current rpm in real time.

Invaluble

You do not actually neeed motor efficeincy sstc - you need to know which propellor is optimum in which speed range and its energy consumption for that return.

The battery will play a larger part as loads increase. A  logger is the only way you can include the Peukert effect (evident in voltage levels) into your calculations.

Regards
AJG  

 



On 30/07/2012 2:08 AM, Arby bernt wrote:
 
Dear Geoff,
Use an analog meter. 
It'll average the complex waveform without any problem. 
Digital meters use sampling and caluclations based on a sine-wave to create the displayed value. Transients reek havoc as a result.
Analog meters have none of that. 

Arby Bernt
Advanced Marine Electric Propulsion 


From: Kevin Shepherd <shepherdkevinj@gmail.com>
To: "electricboats@yahoogroups.com" <electricboats@yahoogroups.com>
Cc: "electricboats@yahoogroups.com" <electricboats@yahoogroups.com>
Sent: Sunday, July 29, 2012 8:41 AM
Subject: Re: [Electric Boats] Re: PWM output measuring

 
Hi
Measure current ahead of the controller they are efficient and part of the load.


Kevin J Shepherd

On 2012-07-27, at 7:36 PM, "greenpjs04" <forums@greensdomain.com> wrote:

 
Hi Geoff,
Perhaps there are some rules of thumb someone can give you, but PWM (pulse width modulation) creates complex signals that are difficult to measure. True RMS meters might give you voltage and current values that you can multiply together to get a feel for power, but like measuring regular sine wave AC, the subject of power factor will crop up due to inductance in the motor windings. I don't believe there are any simple forumlas that will give you accurate data. However, I am sure there is high end test equipment that can give you what you want by sampling instantaneous voltage at current over a period of time. However, I bet that equipment is expensive. I do not have any experience in that area. Can anyone else give Geoff some help?

Pat

--- In electricboats@yahoogroups.com, Geoff Vaizey <g.vaizey@...> wrote:
>
> Pat
>  
> Thank you for such a prompt reply. What I am trying to achieve is a better idea of how much power the prop is absorbing rather than just measuring what is being used from the batteries. I have started logging watts/rpm/speed etc. to build up a series of curves for various prop sizes but have no idea yet how much is being lost through the controller, gearbox, propshaft etc. If I fit an ammeter and voltmeter to the motor terminals, is there a correction factor which will give a reasonable indication, the figure of 1.11 has been suggested but which way, up or down?
>  
> Geoff V
>
>
> ________________________________
> From: greenpjs04 <forums@...>
> To: electricboats@yahoogroups.com
> Sent: Wednesday, 25 July 2012, 16:42
> Subject: [Electric Boats] Re: PWM output measuring
>
>
>
>  
>
> Hi Geoff,
> You are correct that measuring at that point in the circuit is difficult. Most multimeters set to AC assume a nice clean sine wave when displaying voltage or current. Some more expensive units (eg, Fluke) have "True RMS" capabilities and do much better. However, when using PWM, what voltage or current do you want to measure? Peak? Average? If average, over what period is the average taken? When trying to diagnose a problem, you need to be able to see the waveform and an oscilloscope is needed to really know what is going on.
>
> Pat
>
> --- In mailto:electricboats%40yahoogroups.com, Geoff Vaizey <g.vaizey@> wrote:
> >
> > Gentlemen
> >  
> > I have recently completed a small electric powered catamaran and wish to take measurements of the power consumed by the motor as well as monitoring the battery consumption with a NASA marine BM1. The motor speed is controlled by a PWM unit and I am concerned that the square pulse form of the output will give incorrect meter readings, can anybody in the group help me with correction factors?
> >  
> > My thanks in anticipation.
> >  
> > Geoff V
> >
>




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Posted by at No comments:

[Electric Boats] Re: Charging battery bank while underway..

 

Thanks Roland (and to the others who responded). It's good hear others have done similar things.

My dad and I are planning to build our boat over this winter/spring 2013. Will definitely post pictures and specs when finished.

Chris

--- In electricboats@yahoogroups.com, "rolandandgerry" <rolandrodriguez@...> wrote:
>
>
>
> Hey Chris,
>
> You can definitely charge underway. A lot of people use small generators such as the Honda eu2000i to supplement other charging sources such as solar/wind/prop regen while underway. Just a thought, depending on your budget a simpler solution to your needs might be one of the Torqueedo products. I use one for my dinghy and it would definitely push a boat of the size you're thinking well past the range you've got in mind. All up it weighs around 35lbs, lithium battery included, or get one of the models which are powered by your own batteries and then you can charge underway using the method of your choice and increase range with a larger battery bank as needed.
>
> Would love to hear how your project turns out.
>
> Regards,
>
> Roland
> s/v Miss Teak
>
> --- In electricboats@yahoogroups.com, "cober_chris" <cober_chris@> wrote:
> >
> > Hi folks, I've posted this a couple of places, but I think I may have finally found a good forum for this question:
> >
> > I'm designing a small electric boat, because I like quiet slow cruising, and aim to use it in small Ontario lakes and the Trent Severn canal system. 18-20 feet long, 4 foot beam, for 4 or 5 people. Basically an oversized canoe, very light (less than 500 pounds including batteries, I hope).
> >
> > I was thinking that the easiest way to do the electric propulsion would be to use all off-the-shelf stuff from BassPro shops.
> >
> > Here is my plan right now:
> > - Minn Kota 24V trolling motor, maybe 80#
> > - 2 batteries (or 4 smaller ones if it made more sense, see below)
> > - Minn Kota onboard charger (2 or 4 bank, 15 amps per bank)
> >
> > What I'm looking for is a light boat (as few batteries as possible) with 2 or 3 hours of cruising time via the battery bank, with the ability to extend my range occasionally with a 1200 watt generator. Of course, I can charge at the dock/campsite/lock with an onboard charger and generator, but here's the question:
> >
> > Can I charge a single battery bank on-the-go, while using it? Say I want to keep going for most of the day, would it be possible to start the generator up on the water, and have it charge the batteries while I keep going? Or is that not a good idea?
> >
> > I'm thinking my boat would chug along ok on 500 watts (guessing), and a 2 bank charger can put about 400 watts back into the batteries in bulk charge mode. A 4 bank charger (15 amps x 4) would put over 800 watts into the batteries in bulk charge. That would certainly be enough to continue cruising with my canoe.
> >
> > I know there are also safety considerations, I'm thinking to install the generator in a sound-insulated box on the transom, with a blower for ventilation, and with grounding.
> >
> > Is this silly? I posted on one general boating forum, and the majority of responses were "get a gas outboard". Any ideas appreciated.
> >
>

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Re: [Electric Boats] Re: New Guy's First Post

 

Welcome Wayne or is it Bob that is new? I know it isn't Mike, his EP conversion is Internet famous. How you doing Mike?

You know the Germans are coming out with some serious marine propulsion motors, you will find their link at the top of page 2 here  http://tbuckets.lefora.com/2012/03/13/integration-of-systems/page2/    

If anyone else has info and links on marine EP that isn't in the thread "Integration of Systems", please share what you have there.

Bob  aka deckofficer

--- On Sun, 7/29/12, Mike <biankablog@verizon.net> wrote:

From: Mike <biankablog@verizon.net>
Subject: Re: [Electric Boats] Re: New Guy's First Post
To: "electricboats@yahoogroups.com" <electricboats@yahoogroups.com>
Date: Sunday, July 29, 2012, 1:17 PM



Bob:

I think you will find that spend a lot less (if any) time crawling around in the confined space below decks once you install EP. Once everything is in place I've found maintenance is minimum and a what you may need to do on occasion can be done while your body is in the main cabin. At least that's what I've found in my install.

Capt. Mike
http://biankablog.blogspot.com


From: Bob Bratton <bobbratton2@gmail.com>
To: "electricboats@yahoogroups.com" <electricboats@yahoogroups.com>
Sent: Sunday, July 29, 2012 11:13 AM
Subject: [Electric Boats] Re: New Guy's First Post

 
Wayne
My feelings are the same about dealing with the very confining space. I'm 6ft 215 lbs and crawling out of that confine space takes me a while to get everything back in to some what alinement. I am new to this group also and a new owner of a 1971, 27 Newport sailboat we bought from a friend who was upsizing to a 34 Catalina. The boat is in great condition except for the Atomic 4 bomb that is done from deep corrosion on the block. So I have removed it along with the rusty fuel tank. Cleaned the engine compartment and now deciding that a little 60lb electric motor is the way to go.
And yes we are still friends I was aware of the fatal condition of the engine and was just going to replace it with a rebuilt engine.

Bob

Sent from my iPad




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