What should my battery range be on my multimeter?
Most of the manual ranging meters have a 20V range, which is what you need to test a car battery. The 20V range means it will measure between 0V and 20V. Tip: if you are a beginner looking how to use a multimeter to test a car battery to ascertain its voltage, consider getting one that has a dedicated battery tester range on it.
How can I test the battery and alternator?
You can test the system with a multi-meter to determine the output of the battery and the alternator, giving you a better idea of the condition of your battery and alternator. Turn the dial on your multi-meter to the 20V setting.
Where does the black lead go on a multimeter?
With the red lead plugged into the voltage (main) terminal of the multimeter and the black lead plugged into the common (COM) terminal of the multimeter: position the red lead onto the positive (+, usually red) terminal of the battery and the black lead to the negative (–, usually black) terminal.
What does the battery light mean on a Chevy Trailblazer?
The battery light is designed to tell you that there is not enough voltage to properly charge the battery, or that the battery itself is not holding the proper voltage. In rare occasions the service engine soon light may light up.
What should the volts be on a trailblazer?
With your Trailblazer turned off, you’ll connect the negative side of the meter to the negative battery post or wire. You’ll then touch the positive side of the voltmeter to the positive battery wire. With the engine off, you should get a reading somewhere between 12.0 volts and 12.6 volts.
What are the symptoms of a bad alternator in a Chevy Trailblazer?
Here are the most common symptoms of a bad alternator in a Chevy Trailblazer: The battery light is designed to tell you that there is not enough voltage to properly charge the battery, or that the battery itself is not holding the proper voltage. In rare occasions the service engine soon light may light up.