VESC Tool: 70 amp, 100 amp max, ERPM needed to be increased to 100k or motor wouldn’t turn from auto configuration.
Temp only went up 20 degrees with internal heat sink when tested 50 amp 100% throttle for 80% of battery. Water was sucked in when turning board over to exit due to cooling air, so water is splashed on before, and straps added.
Runs well with more power than before, more multiple battery runs required to ensure reliability.
Next I’m going to attach the old box to the front so I can use two batteries at a time.
I’m still learning, so this setup on my 105lt board will last until swing weight bothers me, and I will do another build.
Ran three batteries back to back. Didn’t suck in any water, but got drops of condensation as expected.
I’ve been informed the original FD Assist Plus used 60 amp, and the extra 10 I added was noticeable even if rarely used at max.
In 20 knots and associated waves on flat water, it made easy work where with the original unit I would have had some challenges.
I think there is certainly a place for those with limited skills or desire for complex builds, to at the least use Foil Drive motor, prop, universal mounting pod for a build, then with pre-built batteries.
For a box on the board design, used gen 1 parts are regularly for sale, or even a complete unit.
I was going to buy a gen 2 max unit, but now have the power I was seeking, and when downsize my board will build something instead of buying a complete unit.
Most likely using the new version 2 high power motor, batteries from China, and doing the electronics and case myself.
What sort did you use, as in the active ingredient or popular brand to get local variant.
Any other advice on how to care for the 75200 or what makes them die. My whole setup is held together by double sided tape, so easy to remove. Removing the back of all the double sided tape was the hardest part of the build.
I accidentally shorted the power out between the battery and my first 75200 and it then became shorted when I reconnected the battery. I didn’t expect that.
I used it because it has a large capacity and shouldn’t get hot, and plug and play for the remote.
I’ve been using MG Chemicals silicone conformal coating on my 75200’s. Seen it mentioned on Foil.zone and other rc forums. Easy to apply to the top pcb, hard to get it on the lower board where the mosfets are.
If you do coat an esc be cautious about not coating the pins where you plug in a reciever or bluetooth module!
