Results 1 to 7 of 7
  1. #1

    95 Polaris SLT 780 Display is half out and battery not staying charged

    My 95 Polaris SLT 780 is having a problem keeping the battery charged. The problem started last fall when the display characters were half out. I thought maybe the display was going bad. This year I keep having to charge the battery. The display seems to vary in strength. After a charge can run it no problem. After a couple of hours you have 1 chance to start and then it is dead. I checked the volt gauge when running and it was at 16.5 volts so I assume it is charging the battery?


  2. #2
    Sounds like bad battery, take the battery to a auto parts store and have a load test, it is not holding a charge

  3. #3
    Banned User
    Join Date
    Jun 2010
    Location
    Milwaukee WI
    Posts
    16,708
    +1
    1,324
    16.5 volts when running is too high. You may have a bad LR module. It should be in the high 14's when running.

  4. #4
    Can you explain a little more about the LR module? I put in a brand new battery last weekend. Display came up like nromal. After running it a short while the top half went out. It seems like it must have something to do with a draw on the battery?

  5. #5
    BlueFishCrisis's Avatar
    Join Date
    Aug 2011
    Location
    Medina, Ohio, United States
    Posts
    4,988
    +1
    140
    Quote Originally Posted by kenorr61 View Post
    Can you explain a little more about the LR module? I put in a brand new battery last weekend. Display came up like nromal. After running it a short while the top half went out. It seems like it must have something to do with a draw on the battery?
    The display losing characters is usually internal to the MFD and not battery or LR related. It is possible a connection is wiggling loose after some running in your display....... There are threads for MFD repair on here that will help you address the issue....

  6. #6
    Click avatar for tech links/info, donation request K447's Avatar
    Join Date
    Jul 2007
    Location
    near Toronto, Canada
    Posts
    36,579
    +1
    1,272
    The voltage displayed by the MFD may not be accurate.

    Check the battery charging voltage with a proper multi meter on the battery posts while engine is running.

    Voltage should be stable as you vary engine RPM and be fairly close to 14.5 volts.

  7. #7
    BlueFishCrisis's Avatar
    Join Date
    Aug 2011
    Location
    Medina, Ohio, United States
    Posts
    4,988
    +1
    140
    Quote Originally Posted by K447 View Post
    The voltage displayed by the MFD may not be accurate.

    Check the battery charging voltage with a proper multi meter on the battery posts while engine is running.

    Voltage should be stable as you vary engine RPM and be fairly close to 14.5 volts.
    Kinda like this.......


    Click image for larger version. 

Name:	Voltmeters.jpg 
Views:	171 
Size:	32.3 KB 
ID:	273441

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Polaris SLT 780 Digital Display
    By yochichi in forum Polaris Open Discussion
    Replies: 2
    Last Post: 07-08-2010, 10:54 PM
  2. Parting out Polaris SLT 780
    By nick96ta in forum Polaris Classifieds
    Replies: 11
    Last Post: 04-26-2010, 02:28 PM
  3. Blown fuse on Digital Display 96 Polaris SLT 780. Help!
    By pastordug in forum Polaris How To & FAQs
    Replies: 5
    Last Post: 08-14-2009, 06:25 PM
  4. 96 Polaris SLT 780 Salt/Fresh Water & Digital Display problem
    By pastordug in forum Polaris How To & FAQs
    Replies: 1
    Last Post: 08-07-2009, 03:38 PM
  5. Parting out or sell whole 97 polaris slt 780
    By dustin88 in forum Polaris Classifieds
    Replies: 14
    Last Post: 06-03-2009, 09:55 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •