The voltmeter shows the voltage of the battery.
If the voltmeter shows a voltage of 12 to 16 V when the car is moving, then the battery is well charged. If the sensor constantly shows a voltage below 11 V and above 16 V, then the battery is discharged or there is a malfunction in the battery recharging system. Contact the experts to check the system.
Attention! The sensor may indicate a voltage of less than 11 V for a short period of time when starting the engine. This is normal.