Is there a way to read the battery gauge?
Is there a way to read the battery gauge? An exception for many may be the voltmeter or ammeter, both of which are used to display the state of your car battery. Once you understand exactly what they measure, you can also read your car's battery gauges. Look at the voltmeter on the dashboard of your vehicle. Cars operate on a 12-volt electrical system. What happens to the needle in a battery charger? During charging: Voltage rises in the battery, but the current decreases in the charger. The needle may go down to zero (0). If the battery is completely...