Charging System Test (Using a Carbon Pile Load Tester) @JustinMillerAutomotive

Charging System Test (Using a Carbon Pile Load Tester) @JustinMillerAutomotive

Uploaded June 2012 | Updated September 2026, 2 weeks ago

How to test a car's charging system using a VAT-40 (or similar device). This is the only way to determine an alternator's maximum output current.

Charging System Test (Using a Carbon Pile Load Tester)

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Justin Miller |

Charging System Test (Using a Carbon Pile Load Tester)