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  1. #1

    Default Battery Not Charging

    2003 Chevy Suburban with a display of "Battery Not Charging". Have installed a new battery, and got alternator tested which showed good?????? Any ideas...

  2. #2


    Get a multimeter and check the voltage at the battery when engine is running. Should read 13-14 volts. If not bad alternator, if the alternator isn't working then battery voltage should slowly drop and truck will eventually give out once voltage gets too low.

    If thats good maybe a bad regulator on the alternator. Check all your connections as well.

    More details might help as well.

  3. #3


    By reading more posts on this forum about this same issue, I found out that it is better to take the truck up to Auto Zone and get the alternator tested while on the truck. Because previously I had it out of the suburban and it tested good, this time I took the suburban up there and got it tested. This time it tested bad. Got a new alternator and got my battery charged there. It is working like a champ now. Thanks for the info, and yes the battery voltage was dropping on the battery while it was getting tested.

  4. #4
    murdog94's Avatar
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    Feb 2008
    Cloquet, Minnesota, United States
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    glad you got everything fixed, and for anyone else it is always better to have them test in vehicle.


    1997 Chevy S-10 Blazer 4X4 with 330K miles and counting (Hunting rig).

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