FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM: Car repair manuals for everyone.

Testing Battery Capacity




Testing Battery Capacity

- Load the battery with about 200 A for 15 seconds by running the starter motor, for instance. Take a voltage reading on the battery at the same time.







Connect the test probes as follows:
- Battery B+
- Battery B-

Is battery voltage above 9.6 V?

NO - Test Charging the Battery

YES - Charging the Battery - I