A2 - Base Voltage and No-Load Test

^ Connect voltmeter to battery posts. Record battery voltage - this is base voltage, engine off.

^ Start engine and run at 1500 RPM with no electrical load. Voltage should increase, but no more than 2.0 volts.


Increased, but not more than 2.0 volts? -- Go to A3. A3 - Load Test

No increase? -- Go to A6. A6 - Under Voltage Test

Increases more than 2.0 volts? -- Go to A14. A14 - Over Voltage Test