Electric Downrigger for Kayak?

Does anyone know of a small enough Electric Downrigger for a kayak?

I was gonna recommend you checkout this thread...but then I saw you already replied to it haha
http://www.norcalkayakanglers.com/index.php?topic=90993.msg1028703#msg1028703
Doug aka marmite built a really nice one years ago too.

There IS definitely a major market for smaller electric DRs! (not just kayaks but also small boats, where they m/b even more popular than the kayak market) Make your own then patent the mofo and mass produce em! I got $5 on it.
Either way, the 2 people who voted No are probably just grumpy about lockdown.

I don't think a smaller DR would be economically feasible to mass produce.
On a smaller DR retrieval speed is compromised as is the weight at the end of the line.
There is only so much power in a small motor.
Start adding reduction gears and the size increases; stronger motor, the size increases.
Energy consumption also increases.
The smaller unit, if used on kayaks, would have to be waterproof to a certain level. I would think at least a level of JIS-7, maybe even JIS-8.
Kayaking is a wet sport. Without a level of waterproofing within the first 6 months over half of the units would end up being returned. That doesn't even factor in the salt water environment.
If all of these concerns were to be addressed then at what cost?
My remote DR cost in the neighborhood of $250 to make. Granted a little overhead was due to coming up with the design having to scrap mistakes, but that part was nominal.
That doesn't include employee payroll either.
The cost decreases as production increases. This is great as long as there is a market large enough.
All things considered I don't see a company producing these anytime soon.
I'd love to see it, I just don't see it happening.

How much battery would be needed to run it all day? That’s either going to be heavy or expensive, plus it will take up room. Can it be designed with a manual retrieve in case it breaks or the battery dies?

How much battery would be needed to run it all day? That’s either going to be heavy or expensive, plus it will take up room. Can it be designed with a manual retrieve in case it breaks or the battery dies?

I have a few prototypes but I was able to lift a 4lb ball at 200FPM up a 16 foot drop continuously for about an hour on a 5ah 12v.

I don't think a smaller DR would be economically feasible to mass produce.
On a smaller DR retrieval speed is compromised as is the weight at the end of the line.
There is only so much power in a small motor.
Start adding reduction gears and the size increases; stronger motor, the size increases.
Energy consumption also increases.
The smaller unit, if used on kayaks, would have to be waterproof to a certain level. I would think at least a level of JIS-7, maybe even JIS-8.
Kayaking is a wet sport. Without a level of waterproofing within the first 6 months over half of the units would end up being returned. That doesn't even factor in the salt water environment.
If all of these concerns were to be addressed then at what cost?
My remote DR cost in the neighborhood of $250 to make. Granted a little overhead was due to coming up with the design having to scrap mistakes, but that part was nominal.
That doesn't include employee payroll either.
The cost decreases as production increases. This is great as long as there is a market large enough.
All things considered I don't see a company producing these anytime soon.
I'd love to see it, I just don't see it happening.

Totally understand. the nice thing is that we dont really need alot of weight on our kayaks. IP68 housings can be found readily and are tested for a 1.5m submersion for 30 mins with no leaking. I dont see this sort of thing happening when im salmon fishing right now but a good use of modern seals can work wonders on rotary shafts. Some are rater to pressures of up to 10psi even.   

I totally agree its got to be compact, efficient, and durable. I think there's a way to do this especially with brushless motors being so customizable with custom winds for low rpms and high torques with awesome efficiency.   I've also thought about the use of electric reels for such a thing as theyre already pretty compact and efficient.. It could be and interesting blend.