Been looking forward to the update on this Justin, lovely to see you enjoying life with your family and showing the world the way we can change to sustainable clean energy by applying a little thought and ingenuity, superb work, all the best knoxie.
Today I watched a YT from 2016 of your business. Watching this one just anchored feelings of how special you and your family are. I have watched so many of your videos, which are a big reason why I am thinking of getting into bike motors, repair, and renovation. I left Vancouver in 1990 for Paris. Watching this reminded me of what I have missed! Thanks for sharing!!
Love it, such a cool project. And wouldn't you just know it. I am doing my yearly once over on my trike. New tire, a couple of spokes, some brakes. And doing a bit of wiring on the ebike part. Just finished placing my Grin order and decided to have a break and see what was on youtubes. Coincidence, Karma? I don't know. But anytime is a good time for a new grin video
Keep up the great work Justin. Love the passion for experiment and analysis (and practical application/product line). Now if I could just hook my eMTB to my sailboat I would be in heaven (yes a coupling between output shaft and bike ... so +human powered for a great day out on the water plus a workout!). And when the day is done I bike home from Port Whitby here in Ontario.
Loving this. I have no sailing experience but I imagine something like this would be wonderful for anyone in the doldrums with no wind and only the Sun beating down on them. Infinite range during daylight hours. Regen for "house power" as well when it's blowy with no sunlight - and from what I understand, the braking effect can play a role in stabilizing the ride. Try and match that, power boaters..
Water cooling the electronics is your friend when your on the water! Big stainless steel plate on the outside sandwiched to a Copper or Aluminum plate inside the boat for the controller(s) and for the motor you could use some custom stainless steel side covers to flow water around the motor and a dripless shaft seal each side. (maybe stack two motors for a bit more grunt and appropriate pitch prop)
Yup the sea is a great heatsink. But for the controller it's simpler/cheaper to add more mosfets so that less heat is generated over a larger area in the first place. That way the controller runs more efficiently and doesn't require additional cooling, so that's the route we'll take for the next upgrade.
@@GrinTechnologies I've got a 1000w hub motor on my bike, it's runs 30amp on a 52v bat. Now I want to go faster. I did a search on YT, people have upgraded their stock controllers to e.g 2000w max output @60amps and they're plug n play so you tune them to your needs. The controllers are Grin phaserunner and ASI bac 800. Edit: I've just seen your TY name. You already know the above.
I'm ready to start an electric ⚡ sailboat company. It's the future of at least sailboats at this point in time, so when are these kits available? Lol I think my favorite feature of this system , is the increased speed under sail @400w ! That's free quiet power . Building my first battery pack soon . Then the manufacture the motor mount , each boat is different . I'm a boat guy gone ebike , and this really gets me going ! Thanks much respect.
Hey Mark, stay tuned to our website. We may be in a position to offer this fast wind motor with a special axle for boat applications by this summer if all goes well.
Your doing great work thanks for the time and effort 👍 can I ask a question..... if i was to do a jet propulsion set up in a small boat like a jon boat or tinnie as there called here in Australia what motor would you recommend.... the boat dry weighs 45 kg the battery weighs 50kg and the jet weighs about 5 to 10kg... i would like to see 40 to 50kms per hour in speed.... any suggestions 👍 Edit... looking at a 48v battery set up with 237 ah, and I can put about 1000w of solar on my boat
40-50 kph speeds is a very different power realm where you are dealing with planing rather than displacement paradigm. You are probably talking in the many 10's of kilowatts unless you have it running on hydrofoils. The 1000 watts of solar will not do much to help out in these power levels.
@@GrinTechnologiesThanks you for your reply very much appreciated 👍 for me i won't be at constant speed i would only need to do those speeds for about 10 to 15min then I will be going at speeds of about 5km/h for trolling for about an hour... some times im in 1 spot for hours with no motor running ... but at any 1 given time im only at speed for short periods of time... i dont care if i need a 5000w motor or 15,000w motor ect im just looking for a recommendation on size of motor..... and remember the whole boat only weighs about 200kg including the batteries, motor my fishing gear and me.... even 30 to 40km/h would be sufficient.... oh and hydro foils is way out of the question 🤣 would be good though 🥳 I really want to go with jet propulsion for skinny water fishing and the whole idea of no prop hanging down sounds good to me... as it is the boat does 40km/h with a 15hp and im sure it would still get up on the plain with a 10hp... what size electric motor would be equivalent to a 10 or 15hp... ive heard some of these electric hub motors are hitting 18,000w.... is that more at what I would be looking at.. or is that too much 🤣 and I see you had yours rewound.. is that something I need to do.....
@@thatdudethatsezshiz7706 It sounds then like a 7.5 - 10 kW electric motor would do the trick, and you can certainly get those power levels from hub motors made for scooters and small motorcycles. The choice of winding KV and battery voltage depends on the RPM of your drive shaft at full power, so that's really the most critical thing to know next. ie ie when you are up on a plane is your jet impeller spinning at 1000 rpm or 20,000 rpm?
@@GrinTechnologies Thanks mate 👍 Now we are moving forward much appreciated... at present i dont have jet propulsion set up in my boat this is all experimental in the mind and ideally concept out of curiosity with the willingness to move forward if the concept can show the integrity i seek... going off prior jet ski specs i need to hit about the 7000 to 9000rpm range to hit max rpm in a jet propelled setup... is this in accordance to an electric 7.5kw to 10kw hub motor rev range or does it need to be rewound to provide that amount of revs at max rpm..... also does the voltage eg: 48v to 72v change the max revs and which way is better to proceed with.... will I get more torque from higher voltage or just more power.... whats the maximum size hub motor I can get at 48v do they come in a 10kw setup or do I need to look at 72 or even 96v for the 10kw hub motors.... i have many questions but i sincerely hope that your up for the challenge.... kind regards your new Australian friend Jimmy 👍
Very cool! I was dreaming of electrifying our similar sized sailboat a few years ago, but alas we have now sold it. As you noted for the west coast, similarly we often found ourselves motoring in non-existent to very light winds here on Kootenay Lake in the summer (or the opposite, a complete squall!), and I had thought it would be much more lovely to motor along under electric power rather than listening to the noisy gas engine. I was thinking of using Nissan Leaf modules however, as that chemistry is pretty safe at the temps I would expect in a sailboat. What chemistry are the 2170 cells you used? Cheers.
Hey Andrew, actually I also was hunting for Leaf modules for this project too but in the end it was cheaper to get brand new cells directly from one of our ebike battery vendors. These are Panasonic 21700A lithium ion cells.
Good stuff Justin! I see you're trying to develop a product around it. Nice going. I'm interested in being part of the trial but I think my boat's too small and that I couldn't keep the motor dry of saltwater. If you have a tip for something that might be better as an outboard I'd appreciate it. Also considering a Maytech MTI120116 18.8 kW motor. I was out in 35 kt gusts this past weekend and ended up radioing for help and getting towed in. I would like to be able to drop sail and self-rescue with my electric outboard in situations like that. At the beginning of your vid I see the entire motor spinning. I don't get it. I thought you'd want the body of the motor to be fixed and the axel / shaft to spin...
Hey nice to see that you have some sailboat and electric drive ambitions too! This solution of an ebike hub motor directly spinning the shaft only works for boats with an inboard motor in them. and yes the entire motor spins, that's how outrunners work. Inrunner motors don't have as much torque density and would normally require a gear reduction rather than direct coupling as we did here. Lots of people have DIY'd electric ouboards by just replacing the gas engine in a normal outboard with a suitable electric motor. We're going to do this on an old seagull motor for the tender using either an eZee or GMAC motor. You don't need 18kW to self rescue in a small sailboat like I see in your videos, 1kW will be more than enough.
Great, thanks for sharing, i just experimented an engine cathastrofhic failure while starting up at the marina, first option i had to adopt is to buy an outboard engine, but now i need to deal with a main inboard power solution, I have been doing a bit of research, but here in Europe parts and components are very high in cost, wonder if your firm is actually considering the EU market? I wish to make the conversion myself and document the process as goes along. I am a aircraft mechanic and IT Bsc, so the skill is there but the knowledge is on the making.
Hi Fernando, yes please send us an email with more details about your boat and setup. We're hoping to be able to have an initial pilot release of this motor drive system later this summer and are looking for candidates with the right skills and boat to be involved in this early deployment and test phase.
This is really interesting system you're having here. The consumption numbers seem to be a little better than mine. But I'm doing a new bottom paint job this spring so we'll see how that affects. (no marine growth here, but just a lousy old bottom paint...) That controller screen/knob-thingie is very interesting. Is it fully self made system?
The Cycle Analyst is self-made and has a long and storied history in the world of DIY ebike projects. This particular firmware release was made for people doing solar electric bicycle builds and it fit perfectly without any mods for our sailboat application which was cool.
Thanks it's nice to be back on this channel again too. The entire space at Odlum could be a giant video studio right now, the inside is pretty spectacular from all angles. :-)
Thanks for the response, Im repowering my electric catamaran, built in england in 1977, refitted in 2006 with pactroq pm motors, they are 2.2 kw, I am set up with 12 agm group 31, @ 144 volts per hull. I was wondering if you knew how to make a 144v battery bank using the types of cells you bundled up for your 72 volt system? thanks john
Someday,, I assure you not a trip goes by that we're not scheming of the best way to fit pedals in the mix :-) One thing that is nice with the CA display is that we have a very good idea of exactly how fast we'd go with any amount of pedal effort. Pedaling hard you could do almost 2 knots, which isn't bad for getting in and out of a Marina etc.
@@GrinTechnologies Would be fun to see such a test compared against a sculling oar or a yuloh. Different muscle groups in use with similar top speeds and, naturally, human power levels.
Does Grin make a larger motor controller than the PR? If not, could you not get creative and use a water cooled base plate with either a heat exchanger to prevent corrosion? A cool project, has the wheels turning (pun intended)
The CA has that with the special firmware we made for the suntrip solar bike race, so yeah it can log and record the GPS speed data too from the GPS module that is on the analogger. We'll cover this in one of the next videos. But for the boat power/speed measurements you really want actual water speed, not the GPS speed. Otherwise the tidal currents throw off the measurements in a big way.
Yes indeed. The batteries were made with single port BMS circuits (same output for charging and discharging) so that they can safely all be charged up while connected in parallel, and the satiator output themselves have no problem being hooked in parallel either.
What is the size and weight of your boat? I am looking for a electric motor to replace my diesel but not sure how much kw/NM is sufficient, my boat is 30 feet and weighs around 7 metric ton
We'll be quantifying air cooling first and hopefully that's all the difference that's needed. A few fan blades on the motor that also blow air over the controller heatsink should do wonders. Otherwise it's flashbacks to the salt water cooling circuit of the diesel engine and not wanting to go there...
Hay buddy 😊 order some 100wat solar panels for your battery plug in to keep charging it on the go Long range .I use solor panels on my Kayak with a troll motor Love it endless power range.
In theory you would loose a tiny bit of speed, but normally when you are regenerating it's because there is already more than enough wind available and you're going at hull speed already. In those conditions no speed drop is discernable, but in light winds it's not something you'd want to do.
The torque that a system can produce has absolutely nothing to do with the voltage that the system is designed to run at. You can make a 12V system with tons of torque or with very little torque, just as you can make a 200V system with lots of torque or with very little torque.
3:22 Happy to see this smiling face. I can only imagine the joy.
Been looking forward to the update on this Justin, lovely to see you enjoying life with your family and showing the world the way we can change to sustainable clean energy by applying a little thought and ingenuity, superb work, all the best knoxie.
Thanks Knoxie, it's been a long and interesting trajectory to get here, and nice to have other fellows stay in touch who've been on similar paths too.
I would say « cleaner » not clean ;-)
Getting surprisingly close to the hull speed of that boat with a bike motor. Truly impressive.
So cool Justin can't wait to do the Eastvanchopcyle boat 😜💯
Today I watched a YT from 2016 of your business. Watching this one just anchored feelings of how special you and your family are. I have watched so many of your videos, which are a big reason why I am thinking of getting into bike motors, repair, and renovation. I left Vancouver in 1990 for Paris. Watching this reminded me of what I have missed! Thanks for sharing!!
All this electric sailboat stuff is super interesting! Looking forward to the solar setup.
90 km range! That's so awesome. Thank you for sharing the details of this build, super inspiring!!
Love it, such a cool project.
And wouldn't you just know it.
I am doing my yearly once over on my trike. New tire, a couple of spokes, some brakes.
And doing a bit of wiring on the ebike part. Just finished placing my Grin order and decided to have a break and see what was on youtubes.
Coincidence, Karma?
I don't know. But anytime is a good time for a new grin video
Keep up the great work Justin. Love the passion for experiment and analysis (and practical application/product line). Now if I could just hook my eMTB to my sailboat I would be in heaven (yes a coupling between output shaft and bike ... so +human powered for a great day out on the water plus a workout!). And when the day is done I bike home from Port Whitby here in Ontario.
Sounds like heaven is just a few weekend projects away!
Justin this great ... I am attempting an electric build myself. Inspiring
Loving this. I have no sailing experience but I imagine something like this would be wonderful for anyone in the doldrums with no wind and only the Sun beating down on them. Infinite range during daylight hours. Regen for "house power" as well when it's blowy with no sunlight - and from what I understand, the braking effect can play a role in stabilizing the ride. Try and match that, power boaters..
I love this so much! No reason for deisel in these boats anymore!
Can't wait to see what's possible with regen in with different props
Now you're talking! 😎🌎❤️
Amazing!!! Andina is the best actriz in this video!!!
Congratulations again.
Kind regards from Argentina
You spotted the real star Federico!
Wow this is so amazing. I love ebikes so much. I never thought hub motors would be so awesome.
Awesome video Justin!
Water cooling the electronics is your friend when your on the water! Big stainless steel plate on the outside sandwiched to a Copper or Aluminum plate inside the boat for the controller(s) and for the motor you could use some custom stainless steel side covers to flow water around the motor and a dripless shaft seal each side. (maybe stack two motors for a bit more grunt and appropriate pitch prop)
Yup the sea is a great heatsink. But for the controller it's simpler/cheaper to add more mosfets so that less heat is generated over a larger area in the first place. That way the controller runs more efficiently and doesn't require additional cooling, so that's the route we'll take for the next upgrade.
@@GrinTechnologies I've got a 1000w hub motor on my bike, it's runs 30amp on a 52v bat. Now I want to go faster. I did a search on YT, people have upgraded their stock controllers to e.g 2000w max output @60amps and they're plug n play so you tune them to your needs. The controllers are Grin phaserunner and ASI bac 800.
Edit: I've just seen your TY name. You already know the above.
Hoping next Justin will try flying something with this motor too :-)
I think the little helper makes everything work better...enjoy while you can because if you turn around he won't be "little" anymore :).
I'm ready to start an electric ⚡ sailboat company. It's the future of at least sailboats at this point in time, so when are these kits available? Lol I think my favorite feature of this system , is the increased speed under sail @400w ! That's free quiet power . Building my first battery pack soon . Then the manufacture the motor mount , each boat is different . I'm a boat guy gone ebike , and this really gets me going ! Thanks much respect.
Hey Mark, stay tuned to our website. We may be in a position to offer this fast wind motor with a special axle for boat applications by this summer if all goes well.
Hero of the revolution
Nicely done... Great idea
Your doing great work thanks for the time and effort 👍 can I ask a question..... if i was to do a jet propulsion set up in a small boat like a jon boat or tinnie as there called here in Australia what motor would you recommend.... the boat dry weighs 45 kg the battery weighs 50kg and the jet weighs about 5 to 10kg... i would like to see 40 to 50kms per hour in speed.... any suggestions 👍
Edit... looking at a 48v battery set up with 237 ah, and I can put about 1000w of solar on my boat
40-50 kph speeds is a very different power realm where you are dealing with planing rather than displacement paradigm. You are probably talking in the many 10's of kilowatts unless you have it running on hydrofoils. The 1000 watts of solar will not do much to help out in these power levels.
@@GrinTechnologiesThanks you for your reply very much appreciated 👍 for me i won't be at constant speed i would only need to do those speeds for about 10 to 15min then I will be going at speeds of about 5km/h for trolling for about an hour... some times im in 1 spot for hours with no motor running ... but at any 1 given time im only at speed for short periods of time... i dont care if i need a 5000w motor or 15,000w motor ect im just looking for a recommendation on size of motor..... and remember the whole boat only weighs about 200kg including the batteries, motor my fishing gear and me.... even 30 to 40km/h would be sufficient.... oh and hydro foils is way out of the question 🤣 would be good though 🥳 I really want to go with jet propulsion for skinny water fishing and the whole idea of no prop hanging down sounds good to me... as it is the boat does 40km/h with a 15hp and im sure it would still get up on the plain with a 10hp... what size electric motor would be equivalent to a 10 or 15hp... ive heard some of these electric hub motors are hitting 18,000w.... is that more at what I would be looking at.. or is that too much 🤣 and I see you had yours rewound.. is that something I need to do.....
@@thatdudethatsezshiz7706 It sounds then like a 7.5 - 10 kW electric motor would do the trick, and you can certainly get those power levels from hub motors made for scooters and small motorcycles. The choice of winding KV and battery voltage depends on the RPM of your drive shaft at full power, so that's really the most critical thing to know next. ie ie when you are up on a plane is your jet impeller spinning at 1000 rpm or 20,000 rpm?
@@GrinTechnologies Thanks mate 👍 Now we are moving forward much appreciated... at present i dont have jet propulsion set up in my boat this is all experimental in the mind and ideally concept out of curiosity with the willingness to move forward if the concept can show the integrity i seek... going off prior jet ski specs i need to hit about the 7000 to 9000rpm range to hit max rpm in a jet propelled setup... is this in accordance to an electric 7.5kw to 10kw hub motor rev range or does it need to be rewound to provide that amount of revs at max rpm..... also does the voltage eg: 48v to 72v change the max revs and which way is better to proceed with.... will I get more torque from higher voltage or just more power.... whats the maximum size hub motor I can get at 48v do they come in a 10kw setup or do I need to look at 72 or even 96v for the 10kw hub motors.... i have many questions but i sincerely hope that your up for the challenge.... kind regards your new Australian friend Jimmy 👍
Very cool! I was dreaming of electrifying our similar sized sailboat a few years ago, but alas we have now sold it. As you noted for the west coast, similarly we often found ourselves motoring in non-existent to very light winds here on Kootenay Lake in the summer (or the opposite, a complete squall!), and I had thought it would be much more lovely to motor along under electric power rather than listening to the noisy gas engine. I was thinking of using Nissan Leaf modules however, as that chemistry is pretty safe at the temps I would expect in a sailboat. What chemistry are the 2170 cells you used? Cheers.
Hey Andrew, actually I also was hunting for Leaf modules for this project too but in the end it was cheaper to get brand new cells directly from one of our ebike battery vendors. These are Panasonic 21700A lithium ion cells.
Good stuff Justin! I see you're trying to develop a product around it. Nice going. I'm interested in being part of the trial but I think my boat's too small and that I couldn't keep the motor dry of saltwater. If you have a tip for something that might be better as an outboard I'd appreciate it. Also considering a Maytech MTI120116 18.8 kW motor. I was out in 35 kt gusts this past weekend and ended up radioing for help and getting towed in. I would like to be able to drop sail and self-rescue with my electric outboard in situations like that.
At the beginning of your vid I see the entire motor spinning. I don't get it. I thought you'd want the body of the motor to be fixed and the axel / shaft to spin...
Hey nice to see that you have some sailboat and electric drive ambitions too! This solution of an ebike hub motor directly spinning the shaft only works for boats with an inboard motor in them. and yes the entire motor spins, that's how outrunners work. Inrunner motors don't have as much torque density and would normally require a gear reduction rather than direct coupling as we did here.
Lots of people have DIY'd electric ouboards by just replacing the gas engine in a normal outboard with a suitable electric motor. We're going to do this on an old seagull motor for the tender using either an eZee or GMAC motor. You don't need 18kW to self rescue in a small sailboat like I see in your videos, 1kW will be more than enough.
Great, thanks for sharing, i just experimented an engine cathastrofhic failure while starting up at the marina, first option i had to adopt is to buy an outboard engine, but now i need to deal with a main inboard power solution, I have been doing a bit of research, but here in Europe parts and components are very high in cost, wonder if your firm is actually considering the EU market? I wish to make the conversion myself and document the process as goes along. I am a aircraft mechanic and IT Bsc, so the skill is there but the knowledge is on the making.
Hi Fernando, yes please send us an email with more details about your boat and setup. We're hoping to be able to have an initial pilot release of this motor drive system later this summer and are looking for candidates with the right skills and boat to be involved in this early deployment and test phase.
I like your battery bank. Is that LiFePO4 and where can I get one?
Nice! I love it!
Innovative engineering! Yay!
Living the real life....:-)
This is really interesting system you're having here. The consumption numbers seem to be a little better than mine. But I'm doing a new bottom paint job this spring so we'll see how that affects. (no marine growth here, but just a lousy old bottom paint...)
That controller screen/knob-thingie is very interesting. Is it fully self made system?
Oh, but your boat is slightly smaller and I believe lighter as well so that explains it. Love the nerdy data sheet! ;)
The Cycle Analyst is self-made and has a long and storied history in the world of DIY ebike projects. This particular firmware release was made for people doing solar electric bicycle builds and it fit perfectly without any mods for our sailboat application which was cool.
@@GrinTechnologies Nice! Next iteration with knots to fit marine applications! ;)
Very great! Regards. Elias
Very cool stuff!
7:08 this dude is so cool ) i wanna electric sail boat too
Cool stuff! Can you provide something like a part and cost list?
Thank you for sharing!
Glad to see the videos are back now that you've finished your move and settled into the larger office. Is there space set aside for a video studio?
Thanks it's nice to be back on this channel again too. The entire space at Odlum could be a giant video studio right now, the inside is pretty spectacular from all angles. :-)
Thanks for the response, Im repowering my electric catamaran, built in england in 1977, refitted in 2006 with pactroq pm motors, they are 2.2 kw, I am set up with 12 agm group 31, @ 144 volts per hull. I was wondering if you knew how to make a 144v battery bank using the types of cells you bundled up for your 72 volt system?
thanks
john
Hi John, yes you would just put two of the 72V banks in series and that would create a 144V system.
Does the boat have pedal assist? 😅
Someday,, I assure you not a trip goes by that we're not scheming of the best way to fit pedals in the mix :-) One thing that is nice with the CA display is that we have a very good idea of exactly how fast we'd go with any amount of pedal effort. Pedaling hard you could do almost 2 knots, which isn't bad for getting in and out of a Marina etc.
@@GrinTechnologies Would be fun to see such a test compared against a sculling oar or a yuloh. Different muscle groups in use with similar top speeds and, naturally, human power levels.
Great video! What size/pitch/blade count is the propeller?
It's 12" diameter and 7" pitch if my memory is correct, but I do have it written down in the notes somewhere.
Why not use GPS data with a speed pulse converter for accurate measurement? This should allow the CA to detect speed with GPS input?
Does Grin make a larger motor controller than the PR? If not, could you not get creative and use a water cooled base plate with either a heat exchanger to prevent corrosion? A cool project, has the wheels turning (pun intended)
The CA has that with the special firmware we made for the suntrip solar bike race, so yeah it can log and record the GPS speed data too from the GPS module that is on the analogger. We'll cover this in one of the next videos.
But for the boat power/speed measurements you really want actual water speed, not the GPS speed. Otherwise the tidal currents throw off the measurements in a big way.
Are the satiator outputs simply paralleled to the pack?
Yes indeed. The batteries were made with single port BMS circuits (same output for charging and discharging) so that they can safely all be charged up while connected in parallel, and the satiator output themselves have no problem being hooked in parallel either.
Ohhhh yeeaaahhhhhh!!!
Part 3 running at 5kW power levels is coming really soon :-)
Hello Justin,
do you think we can expect in near future to be able to control phaseruner with our mobiles with speedgauge over BT?
This just requires a bluetooth dongle in the TRRS port.
@@GrinTechnologies any bt dongle ? do you sell one?
5000 watt stroller for that kid would be cool?
Can you explain how to wire up multiple Satiators like this?
You just have all the outputs hooked up in parallel.
What is the size and weight of your boat? I am looking for a electric motor to replace my diesel but not sure how much kw/NM is sufficient, my boat is 30 feet and weighs around 7 metric ton
It's 25 feet and 5ton displacement. All details are in the ES build thread in the link if you expand the description.
Yo.
Do you have any retailers in EU for your motors and controllers and such?
Yes www.declic-eco.fr/ and www.ebike-solutions.com/en/ are two of the biggest
When is water cooled motor & ctrlr coming up? 🙂
We'll be quantifying air cooling first and hopefully that's all the difference that's needed. A few fan blades on the motor that also blow air over the controller heatsink should do wonders.
Otherwise it's flashbacks to the salt water cooling circuit of the diesel engine and not wanting to go there...
I should buy a boat! :)
Hay buddy 😊 order some 100wat solar panels for your battery plug in to keep charging it on the go Long range .I use solor panels on my Kayak with a troll motor Love it endless power range.
plz make a video about it :) i subbed
How many solar panels keep you topped up when out??
Hi,
Do you gain or loose speed when regenerating ?
In theory you would loose a tiny bit of speed, but normally when you are regenerating it's because there is already more than enough wind available and you're going at hull speed already. In those conditions no speed drop is discernable, but in light winds it's not something you'd want to do.
Next thing you know he add a gearbox or sets more than one motors oh the possibility
Why do144 volt systems produce less torqe than 72 volt systems?
The torque that a system can produce has absolutely nothing to do with the voltage that the system is designed to run at. You can make a 12V system with tons of torque or with very little torque, just as you can make a 200V system with lots of torque or with very little torque.
your a funny guy , not