Thanks the 18A is from my mobility scooter and will run that motor for several hours. About a 12 mile run. that is for 2 in series running a 24 V motor. It has terminals that work and this is a one time test.
Question two If I use am I better off getting 2-5/600 AH batteries and go through a selector so can run 1-2 or both (In Parellel for 12 V only. I was thinking 2 so if one goes down I know time to go back on the second. Or 1 1000 ah . Either case would be marine deep cycle.
I am leaning toward the 2 battery rig.
If that works figuring on adding a solar panel or two and have no idea what that would entail. Would like to get a full kit like the 100W I see from Harbor for instance.
Ask me for sailboat/multihull am in my element but this electric solar thing is all new Please be patient with me. Old dog learning new tricks LOL
TY
----- oak oak_box@yahoo.com [electricboats] <electricboats@yahoogroups.com> wrote:
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If both batteries are the same voltage - then in theory, both batteries should work - WITH the CAVEAT that your 18AM battery has sufficient terminals on it and can provide enough current for the trolling motor. (this is a significant point)
There's a PDF for the Minn Kota here:
I was impressed - on page 10 - it lists the max Amp draw for the various motors.
The 40# motor is rated to draw 42A max at 12V. That's approximately 500W.
Your 18AH mobility battery is rated to provide at most - 18A at 12V for one hour: 216W
Is the mobility battery lead acid or lithium? If it's lead acid, you don't want to run it down more than 50%.
So that gives you about 100W for an hour. You wouldn't want to run more than about 12 minutes at full power. The battery might allow you to run longer than that - but you would risk impacting the battery lifetime (if it is lead acid). If the battery is Lithium, you can possibly deplete it to 75% - which at 500W would get you about 30 min.
Again - this is ASSUMING the battery is able to supply 42A continuous for 30 min. Without knowing anything about the battery, we can only speculate that you would be pushing it a bit.
Now... If you run the motor at LOW speed, and only consume 12A instead of 42A, then you could possibly run a half hour instead of only 12 minutes.
Will it work for a 5 min. test - probably.
Would you want to use 2 or 3 of them as your primary battery, no.
John
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> On Monday, March 11, 2019, 9:03:58 AM EDT, captnlen trikini2008@embarqmail.com [electricboats] <electricboats@yahoogroups.com> wrote:
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I have a small 10.5 Cat with a 40 lb Minne Kota
> trolling motor set up.
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Want to see what it does. don't want to buy a
> battery if not enough.
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Have an 18AH mobility Scooter Battery, If I use
> that are the performance figures what I would get with a 1000AH
> deep Cycle valid. Not endurance, but speed and maneuverability
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Thanks
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> Capt.Len Susman Rtd
> Trikini Trimarans
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Posted by: "Capt.Len" <trikini2008@embarqmail.com>
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