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  1. #11
    Scrubcadet10's Avatar
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    Exclamation Re: Cub battery woes

    Okay, the battery has held steady for 2 days at 12.5 volts. down from 12.8V.
    Do you think something is draining it? Could it be a short in the start solenoid, because really, the battery started draining when the solenoid started "Clicking" instead of starting.

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  3. #12

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    Re: Cub battery woes

    I like to start from the starter motor and go backwards .
    Do the following tests, regardless of the results from either of them as there can be more than one problem and you want to isolate where the problem lies.
    Elimination of individual parts is important so you know by the end, the battery, solenoid & heavy power circuits are all in good order.

    1) try to jump the starter motor directly from your car or truck.
    Starter turns = starter good

    2) do the same directly from the mowers battery
    Starter turns = mower battery good
    No turn = duff battery, recharge it & try again.

    3) leave the - jumper lead on & remove the + jumper then try again
    Starter spins = bad ground

    4) Put the + lead on the battery connection on the solenoid & try again
    Starter spins = bad power wire from the battery

    In all cases above ( except the solenoid test ), put the + jumper directly on the + terminal of the starter motor directly first.
    Then connect the - jumper to a good ground . I like to use the oil drain bolt,
    Prepare yourself for a big flash when you do this which is why there is a solenoid in the starting circuit.

  4. #13
    Scrubcadet10's Avatar
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    Thumbs up Re: Cub battery woes

    The solenoid isn't on the starter (if you mean to hook up to solenoid when you say starter) Or did i just mis understand you (i tend to do that sometimes)

  5. #14

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    Re: Cub battery woes

    Quote Originally Posted by Scrubcadet10 View Post
    The solenoid isn't on the starter (if you mean to hook up to solenoid when you say starter) Or did i just mis understand you (i tend to do that sometimes)
    That is right.
    ON tests 1 to 4 you are connecting directly to the starter motor.
    However when you make the high amp circuit you get a really big flash and that tends to make people jerk so if you are making the + connection to the starter terminal there is a better than average chance of jerking and contacting the starter body ( which is ground ) with the + jumper so you have then made a direct short.
    If you hook up onto the starter first and then the ground it does not matter if you miss with the lead and touch some thing else.

  6. #15
    Scrubcadet10's Avatar
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    Re: Cub battery woes

    Sorry took so long to get back to you.
    Did the tests and battery is good, and starter is good.
    A

  7. #16

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    Re: Cub battery woes

    Good stuff gets repeated. Sure wish this site would just create a few stickies on basics, including battery. Anyway ...

    I have bought the 230AMP rider batteries for years and have them in 3 cars, right, 3 cars for weight reduction. Yes. this is not for most as these guys are sensitive to frequent starts. I run them year round including winter , here usually 25F-above. The point? They last if maintained, and have lasted the 2-3 years expected in cars and riders (lots of ruts.) I do cater to them, $25 new.

    As Bert mentioned there are many good sites to help understand batteries. No one above mentioned (?) the use of bat hydrometers as a supplementary device which is cheap ($10) and can help reach conclusions . If one of the batteries is aged or otherwise suspect I use the hydrometer to measure the specific gravity after charging. Recently I got a hydrometer with a finer scale, not just "good", "fair", "bad" ( the little floats that rise when you draw out the electrolyte with the suction bulb have numbers on them). And I now use the ground rule of "50 points." As you check across the 6 cells note the readings. Variation of .50 across the 6 readings indicates a failed battery . This is also useful if you have a "repair" or "desulfate" function on your charger which may say "repaired" battery and read 12.8 v or above, but which registers a 50 point spread on the hydrometer. Recently this drill showed a failed battery which would not hold the 12.8v over a minute.

  8. #17
    Scrubcadet10's Avatar
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    Thumbs up Re: Cub battery woes

    I got the solenoid put on this morning, cranked right up, and so far the battery is staying charged!!

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