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What Voltage Are Car Batteries-Test Methods, Dead Battery Voltage And Charge Methods
So it is pretty likely that you have heard technical terms such as car batteries and voltage all your life but have not been able to decipher such technical biggies.
Voltmeter Meter Method:
- Using a voltmeter to measure the voltage of your car battery is a much easier method compared to the crank method and others if you are a beginner and trying it for the first time. Let us see how you can do the reading for yourself.
- Always check the battery voltage when your automobile is not operating. Make sure your vehicle has not been performing 12 hours before the test. Remove and connect the positive terminal of your automobile battery with the positive lead of the voltmeter. Do and repeat the steps the same for the negative terminal of your automobile battery. Open the negative terminal of your battery and connect it to the negative lead of your voltmeter. Once that is over, you can proceed with the voltage reading for your vehicle.
- As we know, a battery is in full charge, with 12.6 volts and above. If the voltmeter shows you a voltage reading of 12.4 volts to 12.8 volts, it signifies that your battery is in the right charge and working efficiently. In case your reading shows a voltage of 12.9 and above, check your alternator for the overcharging of your battery. A consistent voltmeter reading between 12.4-12.6 is the best for your vehicle.
- A voltmeter reading of 12.4 volts of charge is okay too, but if it dips below that, you might want to "trickle charge" your automobile.
Engine Cranking Method:
For the engine cranking method of testing your voltage, you will have to repeat the same steps of connecting as above.
- Open the positive terminal of your battery and attach it with the positive of your voltmeter. Do the same for your negative points.
- Once the above steps are over, you will have to crank your engine while keeping an eye on the voltmeter at the same time.
- If the reading is something around 9.6 volts and above, your battery is good to go. But in case it shows something below 9.6 volts, you will have to change the automobile battery as it is not capable of accepting the charge anymore and help your vehicle operate.
Both the methods stated above are cost-effective and used widely to get the voltage readings. In case you are not confident enough and don't want to try it out yourself, you can take your vehicle to someone experienced and get the reading.
Do not try if you are not sure as it might put you and your automobile at certain risks.