Search found 621 matches

by Bazaki
Jun 22 2021 3:24pm
Forum: Battery Technology
Topic: Super Capacitors for "Burst Mode"?
Replies: 35
Views: 2386

Re: Super Capacitors for "Burst Mode"?

Thanks guys, you are right.
I never calculated it with the size and weight of the caps. And indeed, the promised farads are from 100v to 1v orso
And not in a range between 100v to 90v for example.

So there goes one of my fantasy balloons :mrgreen:
by Bazaki
May 08 2021 1:14pm
Forum: Battery Technology
Topic: Super Capacitors for "Burst Mode"?
Replies: 35
Views: 2386

Re: Super Capacitors for "Burst Mode"?

What about supercapacitors for just a 5 sec burst. I was just brainstorming about building a really fast E motor scooter. A big QS motor that can handle 30kw peak in the rear and one in the front. 2 big controllers, a simple 4kwh 100v 18650 pack for cruising around town at max 8kw of power. But for ...
by Bazaki
Jan 04 2020 4:35pm
Forum: Electric Watercraft
Topic: Build my own winch for watersport. Broke my controller?
Replies: 5
Views: 2252

Re: Build my own winch for watersport. Broke my controller?

I ran 80a battery current with an 18 fet at 18s lipo
The 24 fet can run 150a If you ask them. They can program it.

A 36 fet greentime is even stronger. That would be overkill.

Those controllers can run with hall sensors and also sensorless
by Bazaki
Sep 20 2019 3:11pm
Forum: Electric Watercraft
Topic: Electric Surf Board
Replies: 767
Views: 246328

Re: Electric Surf Board

No. Too small
by Bazaki
Sep 01 2019 2:52am
Forum: Electric Watercraft
Topic: Electric Surf Board
Replies: 767
Views: 246328

Re: Electric Surf Board

I do have a new lehner torqstar for sale if anyone is interested. 7040 watercooled 320kv
by Bazaki
Aug 03 2019 5:37pm
Forum: Electric Watercraft
Topic: Electric Surf Board
Replies: 767
Views: 246328

Re: Electric Surf Board

The gasoline jetboard makes almost the same sound as the electric version in your video's :mrgreen: I can imagine that trouble after trouble is demotivating you. I also stopped for the same reason with my electric jetboard, but now my electric hydrofoil is almost finished. It has so many benifits, o...
by Bazaki
Jun 22 2019 4:09am
Forum: Electric Watercraft
Topic: Electric Surf Board
Replies: 767
Views: 246328

Re: Electric Surf Board

Everybody moved to the efoil builders forum:) so many are already riding there electric hydrofoils
by Bazaki
May 30 2019 3:13am
Forum: Electric Watercraft
Topic: Build my own winch for watersport. Broke my controller?
Replies: 5
Views: 2252

Re: Build my own winch for watersport. Broke my controller?

Get 24fet controller from alieexpress. Greentime brand. You will be fine. And you can replace the broken mosfets in the 18fet controller too
by Bazaki
Apr 15 2018 8:57am
Forum: Electric Watercraft
Topic: ebike hub motor for marine propulsion
Replies: 15
Views: 5449

Re: ebike hub motor for marine propulsion

https://youtu.be/QYR_sgHDU-4

This i made a few years ago. Silent
by Bazaki
Feb 18 2018 3:57am
Forum: Electric Watercraft
Topic: Electric Surf Board
Replies: 767
Views: 246328

Re: Electric Surf Board

Yes I put for sale here :

viewtopic.php?f=31&t=92871
by Bazaki
Oct 17 2017 8:04am
Forum: Electric Watercraft
Topic: Electric Hydrofoil/E-Foil
Replies: 463
Views: 74637

Re: Electric Hydrofoil/E-Foil

Yes ! Congratulations . The foil etc looks great, you just miss some surfing experience. I kitesurf for about 20 years, but foiling took me a few days to learn it. Keep trying and keep the board flat directly when it will come up, lean forward. And try standing with knees bending. But first, make me...
by Bazaki
Oct 11 2017 4:58pm
Forum: Electric Watercraft
Topic: Electric Surf Board
Replies: 767
Views: 246328

Re: Electric Surf Board

Looking forward to see the video with more speed at the jetboard
by Bazaki
Oct 06 2017 5:59am
Forum: Electric Watercraft
Topic: Electric Hydrofoil/E-Foil
Replies: 463
Views: 74637

Re: Electric Hydrofoil/E-Foil

Sorry to hear about your injury. What happend
by Bazaki
Sep 26 2017 1:42pm
Forum: Electric Watercraft
Topic: Electric Surf Board
Replies: 767
Views: 246328

Re: Electric Surf Board

No, i want start another project, and i don 't need such a good and powerfull motor anymore.
by Bazaki
Sep 25 2017 2:39pm
Forum: Electric Watercraft
Topic: Electric Surf Board
Replies: 767
Views: 246328

Re: Electric Surf Board

http://www.lehner-shop.com/Outrunner/Torqstar/Torqstar-2-7040::49.html?XTCsid=opo7tlps85lvrqd6rjbfj3p3a2 And if anyone is interessted in the lehner torqstar motor that is used in the lampuga surfboard. I have the lehner torqstar 7040 winding 6 with watercooling. Costed about 1000 euro. Make me a goo...
by Bazaki
Aug 21 2017 4:00pm
Forum: Electric Watercraft
Topic: Electric Hydrofoil/E-Foil
Replies: 463
Views: 74637

Re: Electric Hydrofoil/E-Foil

100% carbon fiber surfing hydrofoil water wings carbon gofoil for foil sup
http://s.aliexpress.com/V3aQVFJn
(from AliExpress Android)
by Bazaki
Aug 16 2017 6:32am
Forum: Electric Watercraft
Topic: Electric Hydrofoil/E-Foil
Replies: 463
Views: 74637

Re: Electric Hydrofoil/E-Foil

About the trolling motor. If you replace the prop with a higher pitch prop you increase the watt also. So maybe you can reach 2000watt. You only need this higher power for just a few seconds?
by Bazaki
Aug 03 2017 2:31am
Forum: Electric Watercraft
Topic: Electric Hydrofoil/E-Foil
Replies: 463
Views: 74637

Re: Electric Hydrofoil/E-Foil

I once lifted a 92v a123 60ah batterypack. My left wrist touched the + and right wrist the -. by accident ofcourse it just was tinteling a little bit. But i would not recommend it.
by Bazaki
Aug 03 2017 2:25am
Forum: Electric Watercraft
Topic: Electric Surf Board
Replies: 767
Views: 246328

Re: Electric Surf Board

Hmmm that is interessting. I now have the 500A flier controller. Of is very very big and Heavy. I was hoping that this 500a controller can do it better.
by Bazaki
Jul 22 2017 3:00am
Forum: Electric Watercraft
Topic: Electric Hydrofoil/E-Foil
Replies: 463
Views: 74637

Re: Electric Hydrofoil/E-Foil

In the past i have used a turnigy c80100 rewind to 45kv and had sync issues. Also used a revolt 10 motor i believe 45kv with ceramic bearings and epoxied stator. Also sync issues with different controllers. A direct drive under water was not so easy. Torqeedo proofed itself and uses a gearbox. Why w...
by Bazaki
Jun 29 2017 12:20pm
Forum: Electric Watercraft
Topic: Electric Hydrofoil/E-Foil
Replies: 463
Views: 74637

Re: Electric Hydrofoil/E-Foil

https://www.amazon.com/Caroute-N400-48V ... B01EZTR6VM

There is this brushless trolling motor. Different prop and probably it can do it.
by Bazaki
Jun 20 2017 1:09am
Forum: Electric Watercraft
Topic: Electric Surf Board
Replies: 767
Views: 246328

Re: Electric Surf Board

I also spend a whole lot of money to build an electric outboard that can get a boat in plane. Than i spend a lot for the electric surfboard. The final stage would have been a wider board with flat bottom, almost no rocker line. They dont exist i think so you need to have it custom build. Or maybe a ...
by Bazaki
Jun 19 2017 3:39pm
Forum: Electric Watercraft
Topic: Electric Surf Board
Replies: 767
Views: 246328

Re: Electric Surf Board

Hi,

I think it is a bit too small, you do need about 11kw to get a board on plane. Maybe a wider board and light person it is ok.

Kv and voltage is ok. But i think you need watercooling also
by Bazaki
Jun 18 2017 2:40pm
Forum: Electric Watercraft
Topic: Electric Surf Board
Replies: 767
Views: 246328

Re: Electric Surf Board

325 euro for the jet free shipping. The motor was running fine letting go of throttle and controller died. At least, some kind of timing error. And i also think why, battery wires were pretty long and motor/esc wires were very short. I found this. https://www.rcgroups.com/forums/showthread.php?95252...
by Bazaki
Jun 08 2017 1:31pm
Forum: Electric Watercraft
Topic: Electric Surf Board
Replies: 767
Views: 246328

Re: Electric Surf Board

viewtopic.php?f=9&t=88790&p=1294823#p1294823


If someone wants a good jet drive for a surfboard, Im selling mine