What Is Normal Battery Voltage? Key Insights for a Healthy Car Battery Voltage
A normal car battery voltage ranges from 12.4 to 12.9 volts when the car is off. A fully charged battery shows about 12.6 volts. When the engine runs, the voltage can increase to 13.7 to 14.4 volts. If the voltage drops below 12 volts, it may signal problems like battery drainage or alternator issues. Understanding … Read more