Is 12.3 volts a good battery?

Is 12.3 volts a good battery?

An open circuit voltage test showing 12.3 volts means the battery is 50% to 75% charged. The battery should read at least 12.6 volts. You can get more accurate results by doing a stress test. Re: How bad does a car battery have to be before it’s good? 22

Is 12.3 volts enough to start a car?

Although most cars have 12 volt batteries, 12V is not enough to start a vehicle. …With a working generator and engine, they should normally run at 13,714.2 volts. The higher level can overload the device, while a significantly lower voltage is not enough for a full charge.

Is the 12.4 volt car battery OK?

A car battery is considered fully charged from 12.6 volts. If the battery voltage drops even slightly, it makes a big difference in performance. … Although not fully charged, a car battery is considered charged at 12.4 volts or more. It is considered discharged at 12.39 volts or less.

Is 11.9 volts enough to start a car?

A dead battery may read 12 volts, but not enough to start a car. … 11.9 V indicates that the battery is completely discharged. Anything below 12.2V means the battery is in a discharged state and a healthy battery should read 12.6V when static.

What is the lowest voltage for a deep cycle battery?

The lowest limit is 10.5 volts (used in testing) and is obviously unsatisfactory in practical use. Experienced motorhome owners try not to use more than 20-50% of the energy available in a battery before recharging it. That means they never let resting blood pressure drop below 12.5.

Can a battery be bad if it reads 12 volts?

At 12 volts your battery is not healthy. If you fully charge the battery and it does not maintain an open circuit voltage of 12.4+ volts, it can be considered defective! Read the voltage when attempting to start the vehicle. The voltage drops significantly when there is a fault, but can read 12 volts with no load.

Is 12.5 volts acceptable for a car battery?

12.6 V volts or more Your battery is good and fully charged. … 12.5 volts Your battery is in a good state of charge, but we recommend that you check it again in a few days to ensure that the voltage has not dropped further.