Operation CHARM: Car repair manuals for everyone.
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Abnormal Battery Discharging

Check for:
1. Corroded battery, terminals, cables or connectors.
2. Loose or worn generator drive belt.
3. Electrical loads that exceed the output of the charging system due to equipment or accessories installed after delivery.
4. Slow driving speeds in heavy traffic conditions or prolonged idling with high-amperage electrical systems in use.
5. Defective electrical circuit or component causing excess Ignition Off Draw (IOD). Refer to Ignition OFF Draw (IOD).
6. Defective charging system.
7. Defective battery.