Is 12.3 volts a good battery?
An open circuit voltage test showing 12.3V means the battery has a 50-75% charge. The battery should show at least 12.6 volts. More accurate results can be obtained by performing a stress test. Re: How bad does a car battery have to be for it to be good? 22
Is 12.3 volts enough to start a car?
Although most cars have 12-volt batteries, 12 volts is not enough to start a car. …With a generator and engine running, they should run normally at 13,714.2 volts. A higher level can overcharge the device and a much lower voltage is not enough to fully charge it.
Is a 12.4 volt car battery okay?
A car battery is considered fully charged at 12.6 volts. If the battery voltage drops even a little bit, performance will be greatly affected. … Even if the car battery is not fully charged, it is considered to be charged to 12.4V or more. It is considered discharged at 12.39 V or less.
Is 11.9 volts enough to start a car?
A dead battery may show 12 volts, but that’s not enough to start the car. … 11.9 V indicates that the battery is completely discharged. Any value below 12.2V means the battery is low and a healthy battery should show 12.6V static electricity.
What is the minimum voltage for a deep cycle battery?
The lower limit is 10.5 volts (used in testing) and is clearly unsatisfactory for practical use. Experienced RV owners try to use no more than 20-50% of the available battery power before recharging. This means that they never allow resting blood pressure to fall below 12.5.
Could a battery be bad if it shows 12 volts?
At 12 volts, the battery is not in good condition. If the battery is fully charged and does not support an open circuit voltage of more than 12.4 volts, it can be considered defective! Read the voltage when you try to start the car. The voltage drops considerably when a fault occurs, but may show 12 volts at no load.
Is 12.5 volts acceptable for a car battery?
12.6 volts or more The battery is good and fully charged. … 12.5 volts. The battery is in good condition, but we recommend that you check it again after a few days to make sure the voltage has not dropped any lower.