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No power when not on battery charger

Filed under: mule — tmaster @ 9:10 pm

Was charging battery on my 3010 mule. When I start it and unhook the battery charger I lose all power and then it dies. It will run and has power when hoked to the charger.

where do I start to look for the problem


  1. Did you check the bat it sounds like its bad.

    If the bat does not charge up its bad.

    If the bat does charge up and later runs down again it could be bad but it also might not be charging when running.

    Comment by tmaster — 06/27/2010 @ 1:32 pm

  2. I have a 2006 3010 Trans 4X4 Kawasaki Mule. The fuel pump relay is out. The dealer wants $97.00 for this relay. P/N on the realy is UC-Y001, U-7-2. The logo on the relay is Mitsubishi. Is there an after market relay that would work that I could find at an auto parts store or other source?

    Thanks for your help.


    Comment by Sunman — 08/18/2010 @ 7:47 pm

  3. I have come to find that the voltage regulators on the Mules are very touchy when it comes to putting a battery charger on the battery while it is attached to the vehicle. I read a cautionary notification that said you should avoid such practices. It is strongly recommended that you disconnect the positive battery lead from the vehicle when using a battery charger. Not doing so can and will damage the voltage regulator on the Mule. (I learned a hard $115 lesson from not doing so.) It is also suggested that if you must jump the battery on the Mule that you do not do it from a running vehicle, turn the jumping vehicle off or use a secondary battery.
    You can check the condition of your charging system with a voltage meter. A fully charged battery will be slightly over 12 volts. With the engine running there should be a reading of @13.1-14.2 volts, if the reading is higher then the regulator is not functioning properly and will damage the battery, the regulator should be checked and replaced if necessary. If the reading is 12 volts or lower then the regulator is not functioning properly and should be checked and replaced if necessary or the alternator has failed and should be checked and replaced if necessary.
    I have also found that running your Mule with a non-working charging system is possible, but as the battery voltage drops to a certain point it will give you a false indication by setting the “Oil Temperature” warning light.

    Comment by Ted — 08/05/2014 @ 1:37 am

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