Eliminate Charging System Risks for Winter Starts

Cost Savings

Checklist Tasks

• Test battery voltage after overnight rest to detect cold-related capacity loss.
• Measure alternator output with electrical loads on to find weak charging under load.
• Clean battery terminals and cable ends to prevent resistance-related no-starts.
• Check for cracked or swollen battery cases indicating freezing or failure.
• Measure voltage drop across cables during cranking to identify bad connections.
• Verify alternator belt tension and condition to avoid charging loss from slippage.
• Scan for charging system fault codes with OBD-II to spot hidden issues.
• Load test the battery’s cold cranking amps to confirm it meets specifications.
• Inspect ground straps for corrosion or looseness to prevent false charging failures.
• Check for parasitic battery drains by measuring draw with ignition off.
• Examine fuse box and charging fuses for heat damage or poor contact.
• Apply dielectric grease to battery terminals and connectors to prevent corrosion.