Make your own electric outboard! Batteries, charging and all the rest!

Рет қаралды 14,188

Күн бұрын

This is part three of our "build series" where we showcase some of our learnings when making our DIY electric outboard. In this video we discuss some important parameters surrounding batteries, battery management systems, chargers, and more!
Feel free to leave any questions in the comments below! Enjoy!
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Part one:
• Make your own electric...
Part two: • Make your own electric...
Build series playlist:
• Build series!
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Update 20230622: Since we have made this video we have created our own webstore, where you can find batteries, ESCs, motors and anything else you might need for you builds! The webstore is expanding by the day, so keep an eye out over at:
www.marsons.se
Anything questions? Feel free to contact us via email: info@marsons.se
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Timestamps:
00:00 - Intro
00:20 - Build series + news
01:10 - Our battery
02:10 - Battery dimensions
02:38 - Battery chemistries
03:10 C-rating
05:25 Battery management and balancing
07:15 BMS app
08:10 Charging
09:05 Tips when choosing a charger
09:40 On/off contactor setup
10:14 Summary
11:10 Outro
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Music: Synapse by Shane Ivers - www.silvermansound.com

Пікірлер: 52

@johndehosson Жыл бұрын

Update 20230622: Hi everyone! Thankyou for your patientce. Our Website is now up and running again, so head over to marsons.se to get your hands on any electronics you might need for your builds! The webstore will be expanding over time, and we will make videos about our kits showcasing how to use them😃 If you are looking for something that isn't in the store yet, odds are we can still help you. So feel free to email us at info@marsons.se if you have any questions! Cheers🍻

@jackagarwal5423 Жыл бұрын

Wow guys awesome stuff, very cool build

@johndehosson Жыл бұрын

Cheers @Jack Agarwal! Say hi to the crew, have sent a video answer to your email :) /John

@Betohillmann Жыл бұрын

Awesome job! Congrats!

@johndehosson Жыл бұрын

@Beto Hillmann, thanks so much! :) /John

@jamaus555 2 ай бұрын

thanks guys, really appreciate the complete run through with all the details. I found this very helpful because its a bit of a minefield out there with info/experience. cheers

@johndehosson 2 ай бұрын

Howdy @jamaus555 ! And thanks for the nice comment, glad you enjoyed it, have a great day! /John

@iamkian Жыл бұрын

My dad and I would like to convert one of our old broken 5hp motors. We have build 2 eFoils, and 1 jetboard in the last two years. As battery's we are using old "but good" ready made 12S1P units from a Ford. They are 46 Ah / 2.07 kWh (44.4V). We did some calculations, and it looks like we will need to run 2 of the battery's in series. Doing this we will have a "24S2P" setup with just over 4 kWh, 46Ah and +88 volt (way over the safety voltage of not getting killed). (note: We are not 100% sure if we will do a 24S for safety reasons) The plan is to put this on a ZapCat boat, and they are made for going fast. If we run a motor like you guys are using (and us using the 24S setup) it will not run longer than 10 minutes at full speed. That is not even adding the extra resistance from cables / heat and so on. Am I correct with this 10 minutes, or am I way off? Also. Please note that we will never run full speed for 10 minutes, but it's nice for a reference value. What kind of current do you guys pull when you are running fullspeed?

@johndehosson Жыл бұрын

Hi @iamKian! Thanks for the message. You know your stuff, and running 24S is a sweet spot for this motor. I did a quick google on the ZapCat, and it seems to run quite efficiently, so my guess, depending on load and conditions, is that, yes you could get about 10 mins at full power. We are allowing about 100A through to the motor at times (approx 12,000W), (which I don't quite recommend maybe because it spins up to an crazy rpm 😂), but doing the maths, a 2kWh battery at 12kW will give a runtime of about 10 mins. We generally always run at about 50A, so about 4-5kW (depending on battery SOC of course), and this is enough push to move along nicely but also gives about half an hour of travel time. Good luck with the build, you can grab the motor on our website (www.marsons.se which is being rebuilt with a new store as I write), so if you'd like to order, shoot me an email. Have a great day, fantastic to hear from you! /John

@iamkian Жыл бұрын

@@johndehosson I'm going to wait for the giveaway in your next video 1st before ordering one.... Who knows I might end up with 2 motors :-)

@claudiocarrizal2168 7 күн бұрын

3.8 Killowatt Battery Pack and the motor is drawing 12 Kw?

@andypag1071 Жыл бұрын

Love this series, thanks guys. How much run time do you get out of a charge?

@johndehosson Жыл бұрын

Hi Andy! I'm pretty sure the run time is in a video, don't have that off hand atm, sorry! The home-made pack we are using is tiny, so runtime isn't huge, but definitely what we need fr our trips of up to a few kilometers. Hope this helps! /John

@sunlightconversions828 Жыл бұрын

I converted a Honda 2.3 4 years ago. Worked flawlessly till a storm flipped the dinghy and submerged the motor. Rebuild it with a waterproof motor/controller. Your build is best I have seen. Your power to weight ration is nuts. I have a few of the ANT bms. Can’t get more than 100 amp continuous out the 300 amp version. Have you had the same problem?

@johndehosson Жыл бұрын

Hi @SunlightConversions! Nice to meet you, and thanks for dropping a line! The AntBMS's have worked fantastically, never had a problem attributed to them. They also output as needed, we have drawn up to 250A without problems. We draw 100A on a daily basis, no problems. The BMS will start to get warm, and in the 250A case, it does get hot, so keeping it well ventilated is needed. Could the problem you describe above simply be that the motor you are using will to draw more than about 100A. What I mean, is if you put a larger motor on there, is it possible it would then draw more than 100A? Alternatively, is the battery capable of more than 100A, or is it getting seriously tired about there, i.e. "maxing out", and that is where the bottleneck is? Hope this helps in finding what the bottleneck could be. /John

@diveflyfish Жыл бұрын

Thank you for these videos. Would you please share what specs rating etc or actual type of relay or contractor you utilized for your battery build? Thanks again. Cheers.

@johndehosson Жыл бұрын

Hi @diveflyfish! Thanks fro watching! I'll ask Jack if we can do a follow up video soon with all the nitty gritty specs! /John

@IllinoisCitizen Жыл бұрын

I would like to do what you did, but with a larger motor (replacing engine on Johnson 115) and with hybrid design over battery. Range of full electric just doesn't cut it. I imagine that this is a bit more complicated, as you have a generator supplying a stream of power instead of a battery. Where would you start?

@johndehosson Жыл бұрын

Hi @Bruno Behrend! Plenty of different ways to go, so you'll need to read up on all your questions, we can only answer a few things in our video. Hope it helps though to get you started! /John

@davidcollins2513 Жыл бұрын

Hi guys do you think it would be possible to build an electric outboard for a catamaran sailboat? It's a 15 meter cat. Would appreciate your input. Love what you do

@johndehosson Жыл бұрын

Hi @david collins! Sounds like an excellent application for a catamaran, just chugging along using solar energy! :) This would be plenty strong enough :) /John

@davemcconnell7823 Жыл бұрын

Sorry if you mentioned this but how do you throttle the motor? Do you use a potentiometer? Thanks

@johndehosson Жыл бұрын

Hi @Dave McConell! Thanks for your message! We use a remote controller to throttle the motor. Regards John

@Lord-jd5uy 2 ай бұрын

could you give an outline, i need a 10hp output as same 9.9 old machine mechanism and continues run for max 3hrs (10km) howmany ah battries need and winch motor to consider..give an outline please

@johndehosson 2 ай бұрын

@Lord-jd5uy Really difficult to give any indications because of all the variables. Much more info needed to get remotely close to an answer, so have a look through the videos. Hope this helps! /John

@antonio.stefanelli Жыл бұрын

Is possible to know the battery model to search it online? Thanks

@johndehosson Жыл бұрын

Hi again @AntonioStefanelli! 😄 Sorry, we missed that! We just updated the info in the video description! If it isn't updated, here it is: "For the Lipo cells we used in the video, and all your battery needs, contact Henry@litechpower.com at www.litechpower.com." Hope that helps! /John

@manwithaplan4808 Жыл бұрын

Do you think you coukd use this motor with two 48 volt lifepo4 batteries wired in series? Would be about 100 to 104 volts

@johndehosson Жыл бұрын

Motor can be used up to 100V @Man with a plan Regards John

@redwood1957 Жыл бұрын

What are the motor specifications? Thank you

@johndehosson Жыл бұрын

Hi redwood1957! Jack here. Check out this video for more specifics on the actual motor: kzfaq.info/get/bejne/nZmYh7l4urqRaWg.html

@BFArch0n 11 ай бұрын

Basics....top speed, how long/far on a charge, costs, weights, everything!

@johndehosson 11 ай бұрын

@DFKnightmare I understand this isn't the answer you want, but there are so many parameters to go through, of which we cover in the videos. Hope this helps!

@Lord-jd5uy 2 ай бұрын

is that motor available in Amazon, is led acid battries 200 ah is good for that

@johndehosson 2 ай бұрын

@Lord-jd5uy Motor is available on our website www.marsons.se. Led acid is not a good choice for these high capacity motors. Thanks for commenting! /John

@Lordlindef 2 ай бұрын

Have an awsome upset for an old 2stroke 4hk yamaha engine for electric power ??? Want a 10 15hp engine And how and what battery needed and volt and all ??

@johndehosson 2 ай бұрын

Hi @eivindlindefjell5602 ! This will need some planning and preparation, and some trial and error, because all of the variables. Most info can be found in the videos, so hope this helps! /John

@NordicProspecting Жыл бұрын

Cool project! You guys sound Australian, but the environment looks a lot like Scandinavia. Im confused 😂

@johndehosson Жыл бұрын

Cheers Nordic Prospecting🍻 And, well... you are correct! Dad is Aussie, I'm half Aussie, and we live in Sweden😁 Did that clear the confusion?😅 Thanks for watching!❤ /Jack

@NordicProspecting Жыл бұрын

@@johndehosson sweet! me too, living in Sweden that is. I will keep watching your electric builds!

@namenotshown9277 10 ай бұрын

why dont you put up sources for parts? and no mention of costs?

@johndehosson 10 ай бұрын

Hi there @namenotshown9277 ! Jack here! Since this was a very long project where we went through heaps of different parts and as a matter of fact kept making changes even after the video was released; we decided that it was best to give general rules of thumb for choosing components, rather then telling you exactly what to buy. Spreading knowledge rather then links also gives everyone watching a chance to make a build that suits their specific circumstances perfectly. After all, almost nobody's needs are exactly alike, and so for the best results you should customise your build, for your pruposes. Quite a few things have happened since this video, so we are now selling certain components on our website www.marsons.se! Check it out! We ship world wide! As for cost, we simply forgot to put that in the video. And since prices change all the time, due to inflation, region, currency etc, this video would have been outdated in a heartbeat if we did. Thanks for watching! Feel free to subscribe, we will have more electric outboard content in the pipelines😊¨ Have a good one🍻 /Jack

@jims1128 5 ай бұрын

Whats name or type of the motor u use???

@johndehosson 2 ай бұрын

Hey jims1128! Check out our website marsons.se or email us: info@marsons.se, and we will help you get a motor🍻

@luisalbertomarrugorocha5884 25 күн бұрын

Que lastima que hable en ingles

@johndehosson 20 күн бұрын

@luisalbertomarrugorocha5884 Sorry! If I could speak Spanish I would! But I only know Swedish and English! Thanks for dropping by, have a great day!/John

@johndoe1778 Жыл бұрын

Why have your son behind the camera explaining everything to you like you're a child haha let him lead the charge so to say

@johndehosson Жыл бұрын

I've tried that @john doe, as you can see, he is pretty fixed in his ways......(apple doesn't fall far from the tree, maybe???)😅

@willjohnson9368 Жыл бұрын

strange.... despite many requests for motor info (where to purchase and price)... as well as the investment price of your complete battery box... YOU CONTINUE TO BE MURKY IN YOUR ANSWERS.... directions to your website is a dead end..... sad......

@johndehosson Жыл бұрын

Sorry about that @WillJohnson, totally with you on the frustration! We needed to change a designed part on the motor which didn't perform well, and we didn't put it on the website. It took some time, but we are now doing final testing on the motor. Already photographed and looking pretty, the moment we're satisfied, we'll let you know when it's good to order. Have a great day, sorry again, hope you understand where we are with this now👍 cheers John

@jasonhinson3812 Жыл бұрын

What kind of range or hours/minutes can you run at 50-70% throttle? I guess I’m wanting to know the range and is it a suitable all day fishing boat? Of coarse, a trolling motor being used while fishing and this being used just to move from spot to spot.

@johndehosson Жыл бұрын

Totally dependant on size of boat and conditions @jasonhinson3812. We have a pack which gives us about 15-20kms in our tiny boat and if we take it easy. But generally we just gun it because we only have short distances to go😅