Hi everyone,
I’m selling my custom DIY eFoil project. This is not a production board and not a plug-and-play commercial kit. It is a fully self-built setup based on a custom board, foil hardware, Flipsky drivetrain components, DIY battery and custom electronics.
Reason for selling:
I’m a engineer and will be moving back to Germany. Since this is a self-built DIY eFoil and not approved/registered for operation in Germany, I unfortunately cannot take it with me.
I built this eFoil during the last years as a hobby project while I was on my assignment in the US. The complete setup was designed in Fusion 360. CAD data / Fusion 360 files can be provided to the buyer on request.
The board was originally built with a Flipsky 65161 motor and matching external ESC setup with water cooling integrated in the board. Last year, I upgraded the drivetrain to a newer Flipsky 65220 motor with integrated ESC. Both motor/ESC setups are included in the package. The remote works with both setups.
The eFoil has only been used in freshwater and has not been used in saltwater.
The project is technically functional, has no known issues and has around 15 operating hours on it. It should still be considered a DIY build for someone with eFoil / VESC / battery / composite experience. I would prefer to sell it to someone who understands what they are buying and is comfortable inspecting, maintaining and modifying a DIY electric hydrofoil setup.
Location:
Alabama, USA
Price:
1500$ OBO
Sale preference:
Complete package only. I am currently not looking to part it out.
Shipping:
Shipping is not preferred. Local pickup is strongly preferred due to the board size and lithium battery. If shipping is absolutely required, it would need to be discussed separately, especially because of the battery.
Main specs:
- Custom approx. 5’0” board (www.clearwaterfoils.com)
- Fiberglass / epoxy layup
- Aluminum foil setup (www.clearwaterfoils.com)
- Three working foil wings included (2 self made)
- Anti-spark / high-current wiring
- Designed in Fusion 360
- CAD / Fusion 360 files available on request
Drivetrain / motor setups included:
Current installed / upgraded setup:
- Flipsky 65220 motor
- 120 KV
- Rated approx. 6000 W
- Integrated ESC
- IP68 version
- Installed as an upgrade last year
Original setup also included:
- Flipsky 65161 motor
- Flipsky FSESC75300 water sports ESC setup
- Water cooling enclosure / cooling setup
- VX3 remote
- Bluetooth module
This was the original setup used when the board was first built
Battery:
- DIY battery pack based on LG 21700 M50LT cells
- 20s5p configuration
- 100 cells used in the active pack
- Nominal voltage: approx. 73.8 V
- Cell capacity: 5000 mAh
- Pack capacity: approx. 25 Ah
- Energy: approx. 1.82–1.85 kWh nominal
- Battery is sealed and uses automotive high-voltage connectors
- Daly BMS 100A, Li-ion 20s 72V with over-charge, over-discharge, over-current, temperature protection, short-circuit protection and balancing
Performance from my testing:
- Ride time: easily over 1 hour on one charge, depending on rider weight, wing, prop, speed and water conditions
- Top speed reached so far: 20 mph
- Performance may vary depending on setup and conditions
Condition / sale details:
- Freshwater use only, no saltwater use
- Around 15 operating hours
- Charger included
- Remote included and works with both motor/ESC setups
Documented project cost:
I have invoices for the main components. The documented material investment is roughly $2,400+ USD, not including labor, CAD/design work, testing, smaller hardware, wiring, connectors, cooling parts, consumables, tools or development time.
Included:
- Custom board
- Foil setup
- Three working foil wings
- Current Flipsky 65220 motor with integrated ESC
- Original Flipsky 65161 motor
- Original external Flipsky ESC / water cooling setup
- Remote
- Charger
- Battery
- Main electronics
- Available documentation / invoices for the main parts
- CAD / Fusion 360 files on request
I can provide more photos, videos, build details, component invoices, CAD data and additional information to serious buyers. A test ride is easily possible since there is a lake close by.
Feel free to PM me if interested or if you have questions.
