I just bought a multimeter so I can test the voltage in my car battery to see if it needs replacing. What’s considered too low for car battery voltage?
voltage is too low if your multimeter measures anything less than 12.45 volts. If your multimeter measures anything less than 11.6 volts, your car battery should be replaced.
Consider the following voltages to determine the health of a standard 12.0-volt car battery:
12.65 volts or higher: Your battery is healthy and fully charged.
12.5 volts: Consider recharging your battery with a battery charger.
12.2 to 12.45 volts: Your battery is operating at 40% to 75% charge and should be replaced before it fails.
11.9 volts or lower: Your battery is considered dead and needs replacing.
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