[Shop-talk] Electrical question

Arvid Jedlicka arvidj at visi.com
Mon Jul 26 15:18:46 MDT 2010


Buy two cheap used 12v motors and put them in series. That will take 24v and 
you'd have the fastest canoe on the lake!!

On the more serious side, I would be more concerned about how long the speed 
control on the trolling motor would last than I would the motor itself. How 
robust is the over-voltage protection for the electronics in the speed 
control?

>I shoulda just gave the whole story up front.  I cart off timed out 24V
> batteries from work (they were paying to dispose of them!)  They still 
> have
> good life in them and I was going to use it to power my canoe on early 
> morning
> fishing jaunts.  They make 24V trolling motors, but I was looking to just 
> get
> a cheap used one and you rarely find the 24V used - plus they are usually 
> much
> higher power motors.
>
> Some airplanes have a "cold start" switch that will put your typically
> paralleled batteries in series for a little extra electromotive umph when 
> very
> cold.  I guess the starters are engineered to accept this higher voltage
> without serious problems given the limited times that would be used.
>
> Matt


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