Minn Kota terrova help

[Schubie]

I have a just over 2 year old terrova co pilot 24 volt that I need help with where to look to hopefully fix.  

When I run the motor it runs slower than what it should run and when I hit 10 on the control switch to go as fast as it will go it shuts off. If I reset to 7 it will restart as soon as I start it but runs slow. Go up to 10 and it quits.  There is not line on the prop shaft. It does this with bothe the remote and the foot drive  

The batteries by the on  board charger are charged full. I have not had a chance to get an actual meter read yet.  I do not think it is a relay as it does not need time to reset. 

Please share some thoughts with me

Thanks

Schubie

[delcecchi]

OK, two guesses.....Or maybe 3...

1.  Battery (at least one) is bad.  you think it is charged but voltage drops way down under load.  

2.  Bad connection somewhere.  again causes voltage drop. 

3.  some water got into the torpedo due to a bad seal and it is gooked up in there. 

My wager would be on #1.  

[Schubie]

Thanks delecchi for the reply and suggestions to try.  Would I be able to test batteries on land or will I need to meter while on water under a load ?

After checking batteries and connections would I dare tear apart the torpedo to check on seal or is that just a repair shop check?  

Thanks agsin for a direction to start trying. I really appreciate this.

 

Schubie

 

[delcecchi]

Batteries need to be tested under load.   Cheapest way is in the water.   Or, you can take them to a place and get them tested. 

While running, it should be somewhere in the range of 11.5 volts or above. 

If you have a amp meter, you should be able to tell if it is the motor by measuring the current draw.   But if it isn't the battery or the wire, got to be the motor.  I took an old minnkota 65 apart years ago and cleaned it out.  It was sort of tricky to get back together.  I would take it in if it isn't the batteries.  They can test it easily to see if it is the motor. 

[Schubie]

Delecchi,

Wow I am drawing a ton of power out of those batteries. Before load the batteries were at 11.47 and 10.54. After 15 secs of running at full power in a garbage can full of water The troller  slows to a crawl and stops. Batteries were at 7.15 and 2.6. 

Called stealth charging to make sure charger and wiring is correct. Danny is rocking great. Things look to be correct there. 

Next step ? Take troller in?  What do you guys think? 

Thanks 

schubie 

[highlife4me]

My guess is the batteries are both bad.  Maybe you could borrow 2 good batteries from somebody to prove it out.

[delcecchi]

My take too, prove batteries are good first. 

Take them to a local garage or battery store and have them tested under load.  No way would 15 seconds drain a good battery without causing an explosion.  

 

[Schubie]

Thanks guys. I know it sounds very odd. But I swear it is Not 30 seconds to dead. It starts out running normal and quickly slows down then shuts self off. I'm so frustrated. Both batteries going bad just seems odd they are both 2 yrs use 3 yrs old. Stored in heated garage with the maintainer on them. I will take batteries to the interstate sales place and have them checked out but I am concerned about the quick loss of power. (I don't want an explosion)

Thank you for all input. This just sounds stupid! It should not be that hard.

Schubie

[delcecchi]

Let us know what the verdict is.  

[Schubie]

Thank you.  Batteries are fully charged. And now out of boat. Taking in to be load tested as soon as possible in morning.  

I appreciate the help. 

Schubie 

[Schubie]

You guys were right on! Both batteries were bad under a load. 

Interstate group 27 new 2014. Bought 2 new ones and everything seems right with the world. 

I appreciate the insight and help. 

Time to fish!

 

schubie 

[delmuts]

AWESOME!! Great info for ALL of us to keep in mind. Thanks for the guys helping you trouble shooting, and for  posting your findings. Seems we all run into problems with trolling motors from time to time.