Have anyone tried using 4S Lipo on a 12V trolling motor?

luvxu said:

While looking around for a 24v motor, I found this motor on ebay for $499.95 which looked to be employing some kind of PWM controller (http://www.ebay.com/itm/24V-2-hp-110-lbs-Variable-Speed-Transom-Mount-Motor-Electric-Trolling-Motor-/221804815552?hash=item33a498e4c0:g:HngAAOSwHnFVg7D1&vxp=mtr).

It looks like people like it a lot (https://www.youtube.com/watch?v=5i8FzBrDAxA).

At this price it doesn't look like I should build my own any more...

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Nice brushless trolling motor. Looks pretty!
I would buy that one too if I could spare the money

Ive been eyeing up this one

http://www.ebay.com/itm/271488313008?_trksid=p2060353.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT

24v, and only 136$ shipped. somethign like 500 of them sold, and if you check the history, no one is pissed. you can also look on youtube for the same motor, and everyone seems pretty happy with it!!

wow, the price of $135.99 new for a 24V 86lbs motor is the best that I have seen. This coupled with an PWM controller like this one (http://www.ebay.com/itm/100A-10-50V-12V-24V-36V-DC-motor-PWM-Speed-Controller-Reversible-Forward-Reverse-/181736154419?hash=item2a5051a533:g:TX8AAOSwrklVSOoG) and you can have a fairly good system. Too bad that this motor only works in fresh water but that is probably OK for many of us.

I put a 4S 100A LiFePO4 on a 12V Hooka dive system 3 years ago. 8D LEAD lasted 25-30 minutes. LiFe.PO4 is still going strong at 90 minutes. No problem with heat.

I recently modified the trolling motor to be PWM controlled. What's a difference in battery does that make! I am now able to extend the battery to 2-3 times compared to the original motor.

I started with the Motoguide 30lb. Opened up the motor header and cut away the rotary switch to make room for the PWM controller board. Then I installed the PWM pot and the Forward/Neutral/Reverse switch. Connected the electrical and closed the motor head. Drill a few vent holes at the bottom of the head to allow air to cool down the PWM board.

When I tested it on the lake, it went so much longer than before. With the batter that I had before, I could only reach one of the islands and had to switch to a new battery before going back. Now I could go there and back and the battery was still not depleted. I am very happy with the modification and want to share with you my result.

Ive not seen these electric outboards before reminds me of a strimmer setup, I use a similar controller on my stand up scooter 3kw at 48v or 12s lipo 60amp and it pops along very well, its a good reliable board that doesn't generate a lot of heat, I imagine they need low prop rpms and use large enough prop blades to make use of the torque created, not to spin to fast and cavitate the water to the point the blade last no time at all.

Monstarr said:

I use a 24 V 80'-ish' lb Motorguide trolling motor with a Kelly 24 V brushed controller.
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As battery I use a 8S (24V) LiFePO4 70 Ah battery. But this could also be a regular series lead setup.

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luvxu said:

I recently modified the trolling motor to be PWM controlled. What's a difference in battery does that make! I am now able to extend the battery to 2-3 times compared to the original motor.

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Excellent work guys!

I'm about to go down this path on a 24v trolling motor. I plan on using a 6s pack of (3) Nissan Leaf 60ah cells - but otherwise pretty similar to luvxu's setup. I was curious if either of you have measure the current draw and motor temps, either before or after the lithium conversion?