Battery won't hold a charge

Discussion in 'Mechanic and Repair' started by SLMGT, Feb 1, 2012.

  1. SLMGT

    SLMGT LawnSite Member
    Posts: 245

    We've got a 2007 Hustler Super Z with a 31hp Kawasaki engine with 700 hours. The battery will not hold a charge. You can charge the battery and it will crank the mower probably 20 times. I don't think the mower has an alternator. What's your thoughts?:usflag:
     
  2. integrityman

    integrityman LawnSite Bronze Member
    Posts: 1,710

    It may or may not be a sealed battery. If it isnt sealed, see if it needs some water added to it. If the cells are low on water this will happen. Use distilled water as tap water may contain minerals that can harm the battery.

    OR

    Take the battery out & go to auto zone/ advanced auto or a battery sales shop and have a load test run. My guess is the battery is shot.
     
  3. SLMGT

    SLMGT LawnSite Member
    Posts: 245

    I'm sorry, I should have mentioned that the original battery was replaced and this issue is with the replacement battery.
     
  4. laman

    laman LawnSite Senior Member
    Posts: 335

    Have that battery load tested before going any farther. You may have a bad one..
     
  5. 2stroked

    2stroked LawnSite Senior Member
    Posts: 297

    sorry, but you might just have to get a new one
     
  6. TimTim2008

    TimTim2008 LawnSite Bronze Member
    Posts: 1,772

    ^ what they said.. sometimes even the new batteries are sitting on the shelfs for many months and go bad too.
     
  7. pugs

    pugs LawnSite Gold Member
    Posts: 3,018

    The mower does have a charging system. Is it working properly?
     
  8. SLMGT

    SLMGT LawnSite Member
    Posts: 245

    How do check the charging system? The mower doesn't have an alternator, what makes up the charging system?
     
  9. laman

    laman LawnSite Senior Member
    Posts: 335

    It does have a charging system. Part of it is under the fly wheel. You have a voltage regulator also.
     
  10. TimTim2008

    TimTim2008 LawnSite Bronze Member
    Posts: 1,772

    when the mower is running, see if the voltage on the battery is 13/14v (or remains the same )
     

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