Home   |  Message Board   |  Information   |  Classifieds   |  Features   |  Video  |  Boat Reviews  |  Boat DIY
Battery or trolling motor issue ????? - Walleye Message Central
Walleye Message Central

Go Back   Walleye Message Central > Boats, Motors, Electronics and Trailers > Boats

Reply
 
Thread Tools Display Modes
  #1  
Old 11-27-2019, 01:06 PM
008wagon 008wagon is offline
Keeper
 
Join Date: Jul 2009
Posts: 287
Default Battery or trolling motor issue ?????

I just got a new MinnKota Ulterra. Battery’s are almost 4 year old Cabelas x900 all lead group 31 agm . No issues before with the battery’s. Problem is now after being spot locked for 2 hours the trolling motor up and quits . It shows no battery power for the tm batteries. Once it does this I can get it to work by repowering the tm on and off . But it will fail again rather quickly. I then turned the motor all the way high and it goes but won’t turn left or Right . Turning it down to speed 7 it would turn but it labored really bad and had very little power to do it. MinnKota says it a voltage issue on my side . I’ve installed a new battery tender plug and new breaker . Wiring is 6 gauge and good . When I got home from this happening the batts sat at 12.5 volts . They charge up to 13.2 . I tested them with a 100 amp load tester and it pulls them down to 11 volts and almost what the tester says as weak . Any thoughts before I try new batteries. I just find it hard to believe these are shot already. Thanks !
Reply With Quote
Sponsored Links
Advertisement
 
  #2  
Old 11-27-2019, 01:24 PM
black white face's Avatar
black white face black white face is online now
Wallhanger
 
Join Date: Jul 2012
Location: Tea, SD
Posts: 1,022
Default

I change my trolling motor batteries every 3 years, regardless. I think MK says 3 years of use as well. JMO!
__________________
NPAA #950
Fish On!
Reply With Quote
  #3  
Old 11-27-2019, 01:41 PM
008wagon 008wagon is offline
Keeper
 
Join Date: Jul 2009
Posts: 287
Default

I was using interstate batteries before and getting 2 years out them .
Reply With Quote
Sponsored Links
Advertisement
 
  #4  
Old 11-27-2019, 06:41 PM
REW REW is online now
Charter Member
 
Join Date: Nov 1999
Location: .
Posts: 37,572
Default

Agm batteries are fine, but are they worth the money?

I use flooded cell batteries and generally get 8-10 years on them.

But, your choice. Install the new batteries and let us all know how it goes.

Take care
Reply With Quote
  #5  
Old 11-27-2019, 09:19 PM
008wagon 008wagon is offline
Keeper
 
Join Date: Jul 2009
Posts: 287
Default

Quote:
Originally Posted by REW View Post
Agm batteries are fine, but are they worth the money?

I use flooded cell batteries and generally get 8-10 years on them.

But, your choice. Install the new batteries and let us all know how it goes.

Take care
I’m looking for a reasonable experienced answer. Not some out of this world answer . Guys that really use there stuff ain’t going to get tat time out of it/
Reply With Quote
  #6  
Old 11-28-2019, 02:06 AM
ltrain's Avatar
ltrain ltrain is offline
Wallhanger
 
Join Date: Dec 2015
Location: Northwest Indiana
Posts: 2,064
Default

I'd trust your load tester and replace the batteries.

Also if you're only getting two years out of your batteries that may be an indication that there may be something wrong on your end. Could be a defective onboard charger or other issue but I think everybody gets more than two years out of a battery, and interstate makes a good battery too.
__________________
1987 Lund Baron
2005 Yamaha f150
1998 15 hp Mariner 2stroke with controllking
Rhodan 72" 36v 120 lb. thrust trolling motor
Simrad nss evo2 12
BG Zeus2 12
Lowrance HDS 12 gen2
Lowrance point 1
Simrad is40
Sonarhub
LSS 1
2 Cannon tracks
2 Cannon electric downriggers
2 Highseas quad rod trees
6 Bert's ratcheting rod holders

Last edited by ltrain; 11-28-2019 at 02:09 AM.
Reply With Quote
  #7  
Old 11-28-2019, 04:21 AM
last chance last chance is online now
Wallhanger
 
Join Date: Mar 2013
Location: muncie indiana
Posts: 2,168
Default

it only takes one bad battery to make them discharge prematurely. if you don't have a load tester take them to a auto parts store and have them checked. it is nit mandatory to use all new batteries but it is the best way.
Reply With Quote
  #8  
Old 11-28-2019, 05:44 AM
fishn_pa fishn_pa is offline
Keeper
 
Join Date: Feb 2012
Location: Pennsylvania
Posts: 219
Default

Based on your description of how the TM has been acting I think your batteries on on the way out. Sounds like the TM operation is sensitive to voltage level and after a short period of operation the voltage level drops far enough to interfere with the operation of the TM even though there is power left in the batteries. In my mind your draw down test confirms this when you see the voltage drop to 11 volts under load.


Good luck.
__________________
2012 Alumacraft Dominator 165 with Yamaha 90 and 9.9
Reply With Quote
  #9  
Old 11-28-2019, 05:46 AM
Shellback's Avatar
Shellback Shellback is offline
Charter Member
 
Join Date: Nov 1999
Location: Wagontown, PA, USA.
Posts: 7,817
Default

Batteries 4 years old? So I assume the boat is older also. Any crimp type connections between the batteries and the trolling motor? I personally would redo every connection. If there are crimp connections, I'd solder them. Hard to tell if there is corrosion inside a crimp. When the motor acts up, if possible just feel every connection to see if there is excessive heat. That's a sure sign of a bad connection.
__________________
2013 Lund Alaskan 1600 Honda 50HP tiller
Reply With Quote
  #10  
Old 11-28-2019, 06:26 AM
Huntindave Huntindave is online now
Charter Member
 
Join Date: May 2002
Location: IOWA.
Posts: 1,519
Default

Quote:
Originally Posted by 008wagon View Post
I just got a new MinnKota Ulterra. Battery’s are almost 4 year old Cabelas x900 all lead group 31 agm . No issues before with the battery’s. Problem is now after being spot locked for 2 hours the trolling motor up and quits . It shows no battery power for the tm batteries. Once it does this I can get it to work by repowering the tm on and off . But it will fail again rather quickly. I then turned the motor all the way high and it goes but won’t turn left or Right . Turning it down to speed 7 it would turn but it labored really bad and had very little power to do it. MinnKota says it a voltage issue on my side . I’ve installed a new battery tender plug and new breaker . Wiring is 6 gauge and good . When I got home from this happening the batts sat at 12.5 volts . They charge up to 13.2 . I tested them with a 100 amp load tester and it pulls them down to 11 volts and almost what the tester says as weak . Any thoughts before I try new batteries. I just find it hard to believe these are shot already. Thanks !
When you say you "tested them with a 100 amp load tester" do you mean that you actually applied a 100 amp load and for how long? If so, it sounds like you did a load test designed for a cranking battery. The testing procedure for a deep cycle battery is much different than the load test usually performed on a cranking battery.

Step #3 in the article at this link details a procedure for checking the health of a deep cycle battery. https://stephenstuff.wordpress.com/2...ttery-testing/

"When I got home from this happening the batts sat at 12.5 volts ." For an AGM battery 12.5 volts would indicate an 80% state of charge which should be more than adequate for your trolling motor to function properly. Was this measured at the battery posts or at the trolling motor?
Attached Images
 
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off

Forum Jump


All times are GMT -6. The time now is 10:27 AM.


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.