12v trolling motor battery recommendations

[Selshar]

Use a pair of Nissan Leaf modules in series. That will give you a bit more than 12V, and the 66ah at 14.6V nominal will only weigh 16.5lbs.

How do you regulate the voltage? A buck converter?

 

[pullin-gs]

Why regulate?
Voltage is acceptable straight off the pack.
PS: Your 66AH pack will push a 30lb thrust motor full-throttle for over 3 hours.

My solution for my MinnKota C2 30lb motor that is hanging off my kayak:
*)First and foremost......I dumped the resistor matrix throttle and get a $15 PWM brushed motor speed controller...efficiencies go up by several magnitudes, especially at lower throttle usage.
*)Build a good pack with at least 20AH capacity....otherwise you will not have any usable range.
I bult a 10lb (!!!) 24AH 3s3P pack w/BMS using these cells:
https://www.ebay.com/itm/20-SPIM08HP-3-7V-8AH-LITHIUM-POLYMER-BATTERIES-25C-200A-SUPER-CELLS-24V-36V-48V/173305036284?hash=item2859c8fdfc:g:QXIAAOSw8~5a72gx:sc:FedExHomeDelivery!34442!US!-1

 

[999zip999]

Wow you bought those cells how do you like them ? How long have you had them ?

 

[pullin-gs]

They work great.
I bought 20 of them total one year ago. 9 went to the trollering motor battery for the kayak.
11 went into a 11S1P pack for this 700w trike (I have over 1500 e-miles on it):
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