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Abnormal Battery Discharging

WARNING: This page is about a different car, the 2002 Dodge Intrepid, 2002 Chrysler Intrepid, 2002 Chrysler Concorde, and 2002 Chrysler 300M. However, it is still accessible from the selected car via links, so may be relevant.

Any of the following conditions can result in abnormal battery discharging:

  1. A faulty or incorrect charging system component. Refer to DIAGNOSIS AND TESTING - ON-BOARD DIAGNOSTIC SYSTEM  for charging system diagnosis and testing procedures.
  2. A faulty or incorrect battery. Use Micro 420 tester and refer to Battery System for additional battery diagnosis and testing procedures.
  3. A faulty circuit or component causing excessive ignition-off draw.
  4. Electrical loads that exceed the output of the charging system. This can be due to equipment installed after manufacture, or repeated short trip use.
  5. A faulty or incorrect starting system component. Refer to Starting System for the proper starting system diagnosis and testing procedures.
  6. Corroded or loose battery posts and/or terminal clamps.
  7. Slow driving speeds (heavy traffic conditions) or prolonged idling, with high-amperage draw systems in use.
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