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Ryobi Mower BMM2400 test with 24volt 75 AH battery?

Discussion in 'Electronic Repair' started by [email protected], Jun 16, 2007.

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  1. Guest

    I have recently received an old Ryobi cordless rechargeable mower. I
    was told the mower works, but it needs a new battery. The correct
    battery for the mower is a 24 volt 15 amp/hour battery.

    Before buying the correct battery for this mower, I am wondering if I
    can safely test the mower first by connecting it up a 24 volt 75 AH
    battery that I can borrow.

  2. Jerry G.

    Jerry G. Guest

    In theory that should work. But, I would not try to use the mower's
    battery charging system. If the larger battery demands more charge
    current, this may damage the charger. This also depends on the design
    of the charger.

    Jerry G.
  3. James Sweet

    James Sweet Guest

    Sure, even a 12V car battery will work fine to test it, motor will run a bit
    slow but you'll know if there's a noisy bearing or burned out motor.
  4. I agree, but I doubt it would hurt the charger.
    A battery doesn't "demand" charge current. It is more or less a
    constant voltage source with some resistance. And, the charger needs
    to be able to deal with a fully discharged battery in any case.

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  5. HomerS

    HomerS Guest

    No problem. Just make sure it is near full charge if possible.
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