Check Battery Cables After Humid Vehicle Storage

Cost Savings

Checklist Tasks

• Disconnect negative terminal first for safe inspection.
• Inspect battery terminals for white, green, or blue buildup.
• Check cable ends for softened or swollen insulation from moisture.
• Examine tray and hold-downs for rust or acid residue.
• Inspect cable-to-terminal crimp for green powder or pitting.
• Test terminal clamps by twisting to check for looseness.
• Check voltage drop during cranking with a multimeter.
• Look for corrosion wicking under cable insulation.
• Clean terminals with battery brush and baking soda.
• Apply dielectric grease to terminals after cleaning.
• Check ground strap connections for hidden corrosion.
• Reconnect terminals in correct order to prevent arcing.