Small Trolling Motor for Ebike Battery? Does not need to be powerful only light-weight and silent

Been looking around on the internet trying to find a light-weight, silent, cheap, 48V trolling motor to power an inflatable boat/kayak.
I want something so light-weight and small so that a can tow it behind my bike on a small bike trailer like the one you would normally use for transporting a child or a dog.

I already own two powerful ebike batteries that I use with my 750W ebike for work commuting: (not my picture)



I bought the extra battery from a guy whose bike sadly got stolen, and a got a great price and thought that it might come in handy in the future.

The specs on these batteries are 48V and 15,6Ah, and there are LG cells inside.
That means that I have 748Wh + 748Wh = 1.5 kWh of energy in total.
Weight of both batteries are 4 + 4 Kg = 8 Kg (17.6 Pounds).



Problem is that all 48 V trolling motors are very heavy and very powerful and much more expensive than your standard small trolling Minn Kota. Some of the 48V electric boat motors look like normal outboard motors and they are heavy and also quite noisy, and I want small and silent.

Does anyone have a product to recommend me or another simple solution that would fit my battery setup?

Thanks!

Put a DC-DC converter inbetween that does 48V to 12V and can handle enough amps to power a simple 12V trolling motor. Or get a 48V PWM controller and set it to 1/4 output.

Thanks! Which will be the most quiet solution? PWM ord DC/DC converter? Dont like high pitch sound of whining speed controlled motors.

I also dont know what type of speed regulation a small Minn Kota uses.

The small Minn Kota 30lbs trolling motor takes a maximum of 30A:
https://minnkotamotors.johnsonoutdo...12.2091581099.1563910824-590462386.1563910824

So you'll need a 48V to 12V 30A converter like these:
https://www.aliexpress.com/item/325...hweb0_0,searchweb201602_10,searchweb201603_60 (middle one)
or:
https://www.aliexpress.com/item/323...hweb0_0,searchweb201602_10,searchweb201603_60 (last one)
Or, if you want a little higher voltahe (=more rpm), this one:
https://www.aliexpress.com/item/328...hweb0_0,searchweb201602_10,searchweb201603_60(48V to 13.8V)

If you want a motor with more thrust (=more amps) you'll need a more serious one:
https://www.aliexpress.com/item/329...hweb0_0,searchweb201602_10,searchweb201603_60

Thank you kindly "SloCo"

No problem, hope it helps.