Mower Draining Batteries

Discussion in 'Mechanic and Repair' started by CFLS22, Apr 25, 2013.

  1. CLARK LAWN

    CLARK LAWN LawnSite Silver Member
    Posts: 2,526

    Check your voltage with the engine off then start it and see if you have more voltage with it running.
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  2. CFLS22

    CFLS22 LawnSite Member
    Posts: 163

    Yea it's 13 on both... Something wrong then right?
     
  3. CLARK LAWN

    CLARK LAWN LawnSite Silver Member
    Posts: 2,526

    If the voltage is equal or less when running then when not running then it is not charging. Could be a wire, fuse, connection or the alt. If its under warranty still take it back. Actually this seems like its over your head so you may want to just take it in anyways.
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  4. CFLS22

    CFLS22 LawnSite Member
    Posts: 163

    Alright so today my Ferris had the same problem, drained the brand new battery completely to the point at which the engine wouldn't even keep running. So does anyone know if Ferris has alternator in it too? It also was a brand new battery this year so could just be a bad batt.
     
  5. Chineau

    Chineau LawnSite Member
    Posts: 34

    Do you have a meter, have you made any tests? Charge your battery and install the positive wire to battery, with meter check between neg terminal and wire is there current? If so you have a short to ground start looking for wire rubbed bare. I should mention key switch off for above test. If no current reconnect neg lead and start machine check output of charging system at battery must be 13 vols or better. Let us know how you make out.
     
  6. gahardware

    gahardware LawnSite Member
    Posts: 45

    Chinea,

    You stated "with meter check between neg terminal and wire ". Which "wire" are you referring to?
    Thanks,
    JLM
     
  7. Chineau

    Chineau LawnSite Member
    Posts: 34

    Sorry just had a look at the post wasn't clear, meter between battery and wire not connected. Something is draining battery need to find where the drain is.
     
  8. MatthewG

    MatthewG LawnSite Senior Member
    Posts: 266

    Good chance it is a regulator or so Im told, I am also having the same problem
     
  9. CFLS22

    CFLS22 LawnSite Member
    Posts: 163

    Same problem on a ferris? Or what mower
     
  10. billc1004

    billc1004 LawnSite Member
    Posts: 138

    Bad starter motor can shorten the life of a battery .
     

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