Operation CHARM: Car repair manuals for everyone.

Abnormal Battery Discharging

ABNORMAL BATTERY DISCHARGING
Any of the following conditions can result in abnormal battery discharging:
- A faulty or incorrect charging system component
- A faulty or incorrect battery
- A faulty circuit or component causing excessive ignition-off draw
- Electrical loads that exceed the output of the charging system. This can be due to equipment installed after manufacture, or repeated short trip use.
- A faulty or incorrect starting system component
- Corroded or loose battery posts and terminal clamps
- A loose or worn generator drive belt
- Slow driving speeds (heavy traffic conditions) or prolonged idling, with high-amperage draw systems in use.