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Old 04-02-2019, 01:53 PM
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acabtp acabtp is offline
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Join Date: Jun 2011
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Default Re: minn kota motor problems

you can get the battery load tested for free at any of the chain auto repair places. if they test out good under load it's not the batteries.

warm connections (not hot) are not unsafe, but are a waste and indicate you are getting voltage drop. if your connections or cable are getting noticeably warm, that takes quite a bit of power... power that otherwise would be delivered to the motor giving you more top speed and runtime. heating the conductors it just gets thrown away.

the manual for that minn kota specifies a 50 amp max draw and no more than 5% voltage drop is allowable at full power. with the TM in the water and set to full blast, the voltage at the motor (take off the top cap) needs to be at least 95% of what you measure at the battery. if it's any less it's the connections are a problem.

if it's not the batteries and it's not the connections, then i'd look at that control board in the TM
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