How much power can I get out of a 36v x 30ah battery pack, for electric motor on inflatable kayak?

alpharalpha

100 W
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Sep 6, 2013
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Florida
I haven't been using my electric bike as much lately, been enjoying pedaling when I do go which isn't as often or definitely not as far as when I built the e-bike; the batteries are the prismatic cells, like new; thought they'd make good batteries for an electric trolling motor on my 2 person inflatable coleman kayak. What can I expect realistically for speed, the coleman is comfy but not aerodynamic, if I put a 36v trolling motor on it will it move along at a nice speed, or be slower going?
 
How long is the kayak, how wide is the kayak, ( what the top speed you want to run, ) .. tell us more about the plan.. WHat troller? ... and how much does the troller consume?

Mine is 30A max, I run all day on 12v, 500Wh, in a 17' Gruman three person canoe with a transom. O carry 1Kwh and sometime breakinto Batt2, but usually am happy with just one 40Ah batt @ 12v. I carry 2 (40Ah) 12v (4s) LiFePo4 batts.
. I go 4-5mph ( GPS cell phone) max hull speed.. over that I can but I have tried more power and is useless.. Not a planing hull.. Like a kayak.
 
It's a coleman 2 person inflatable, they don't make it specifically anymore, it is 11ft long, not aerodynamic at all but not tipsy and can really stretch out--especially with an electric motor.
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The design like in video for motor support, since I have 36v of cells I might as well get a 36v trolling motor when the time comes, any suggestions? They are good cells but I'd like to keep the amperage under 30 and the closer to 10 the better, for longevity etc. https://www.youtube.com/watch?v=QbkzfygflLQ&list=WL&index=65
 

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Oh, this is a similar kayak with a 30lb thrust motor moving along pretty good https://www.youtube.com/watch?v=lha9ONDYJu4
 
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