Does anyone have any insight on this ESC? I’d like to use it for a Duotone inspired mod with battery pack on the back, and mount the ESC directly onto the bottom of the board behind the mast, with the ESC exposed directly to the water for cooling.
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A VESC clone focused on our needs (150/200A cont/peak) : I asked the question on the Flipsky chat. Their answer is encouraging :
FLIPSKY
Yes, the FSESC6.8 IP68 Waterproof ESC is fully sealed and can be submerged in water.
However, my question wasn’t precise enough, so I rephrased it:
"Can the FSESC6.8 IP68 Waterproof ESC be submerged under 5-8cm of salt water while powering a motor continuously ? I’m trying to determine if I can use it without a waterproof box. "
“If yes, could you mention it in your product description /FAQ and proove it with a test video ?”
Stay tuned.
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Aside from placing esc far from the battery, where will you put the receiver? If it is under water, you may face connectivity problems, as FD users face…
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Good question, probably in the waist pack, I guess similar to Duotone. Will need the right power cable.
The benefits are maybe minimal, but I’m interested in why Duotone went this route instead of the Hybrid style of original Foil Drive gen 1. I trust Duotone to make good compromises as their products are very well engineered
example 1
example 2
What are the benfeits on the waist vs on the board? Same as on the back. You get closer to bare foil experience.
That custom flow kit put esc probably in the box.
The waist pack is easier as I have a hybrid box already, but other benefits: no battery drag or otherwise need for a trench board, the weight on the waist is easier to surf with.
Yes default is ESC in box, Duotone the exception. I’ll start with ESC in the box, but think having a waterproof one opens up the possibility of simplifying the box.
The issue is the long battery wires, which does seem to be a problem based on this thread, in which case I’ll use 8AWG cables or larger?
.Tow Boogie General ELECTRONICS - #39 by Strongarm
Here is a great thread explaining why long Battery to ESC wires are a bad idea
, so for now this is not worth pursuing.
https://www.rcgroups.com/forums/showthread.php?952523-too-long-battery-wires-will-kill-ESC-over-time-precautions-solutions-workarounds
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So it seems the concern is stressing the capacitors with more voltage spikes (making heat, heat kills stuff). There’s a possibility that in the Foil assist use case it may not be as bad since there could be periods off power that allow heat dissipation. Then, if your talents are more modest, there would be submersion and that would really cool things off. With an efoil (or RC plane/drone) you never get these off power periods to cool off.
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Interesting, I (partially) understood it as to be regardless of use, but would like to be wrong, as my intended use is primarily short boosts rather than any continuous throttle.
From the tap analogies, it would seem that throttle on/off moments are what causes the spikes. Either that or the ESC phases, which seems more likely.
My question to FLIPSKY was:
FLIPSKY (minimalist) answer :
IP68 rated for installation in fresh water up to a depth of 1.5 m.
In short: the unofficial chat message is intended to reassure, but you do so at your own risk.
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Has anyone tried this model ESC yet. Looks sweet! Even if not submerged in the water under the board, having it mounted sort of exposed inside / or on the outside of a wet waist belt would be better for cooling then inside a watertight box with no airflow.