No-Load Test

1. Connect the digital multimeter leads across the battery terminals.
2. Read the voltage (base voltage). If the battery voltage is less than 12 volts. Charge the battery before test.
3. Start the engine.
4. Run the engine to 1500 RPM with no electrical load applied to the battery.
5. Read the voltage. If the voltage increase is less than 0.5 volts above the base voltage, carry out the Battery Condition Test. If there is no voltage increase, diagnose the charging system.