Fax：(+86) 769 2229 0098
ADD：Tonghui Road, Dongcheng Science Park,
Greenway New Energy
ABOUT US PRODUCTS NEWS Scan QR code to follow
Car Battery Volts- Test and Voltage Range
There are many different cars and that have different types of combustion engines and other things are also very different for most of the cars. However, one thing that stays for most of the cars with engines is that all of them have a battery that is used for cranking the engine.
The first thing that you need to know is the way by which you will be able to test the voltage of the car battery. So, for this you will need a voltmeter and nothing else. Other than the voltmeter you might need some spanner or pliers and a metallic brush too for some cases. Here is the step by step guide on how you can test the voltage of your car battery.
1.Disconnecting the wires of the battery.
The first step that you will need to perform is to disconnect the battery for any kind of load or charger. It is because if you check the battery that is connected somewhere, you will not get the actual readings. For this, if the battery connectors of the car are attached tightly to the battery terminals, you might need the help of a spanner or pliers to loosen the connector.
However, disconnecting only one terminal will be enough.
2.Making sure that the terminals are clean.
When you have the battery disconnected from the load or the charger, you need to make sure that there is nothing on it. Some things that you might find on the battery terminals are listed below.
- Chemicals corrosion.
- Dirt or grime.
If you find any of these, make sure to remove them with the help of a metallic brush or a dirty cloth.
3.Connecting the voltmeter and taking readings.
Now you can touch the similar terminals of the battery to the terminals or probes of the voltmeter. Waiting for a view seconds so the voltage reading gets stable and you can note the readings. Make sure that you get readings at least 3 times.
Add the readings and divide the sum from the total number of readings. Now you will have the voltage readings of your car battery.
It is a good practice to know what is happening with your car battery. So, when you know to take the readings of your car battery voltage, you must also know what type of the readings is too high. In the case of car batteries, if you get readings equal to 12.9 volts or even more, this will not be a good sign.
This will be a sign that your battery is having a high voltage that is not good for the battery health. It has a lot of consequences for the battery. Some of them are elaborated below.
The consequences of having high voltage on your car battery.
Here are some of the consequences of using the battery at a very high voltage.
The capacity of the battery will decrease.
The very first thing that will happen to the battery will be a decrease in its capacity to store charge. This means that the battery will start to get charged for less capacity and it will also tend to lose the charging if it sits idle.
Excessive heat will be produced.
As the high voltage of the battery is a clear indication that the battery is being overcharged, this will cause a lot of excessive heat in the battery. If you keep using the battery in this condition, the battery plates will be permanently damaged. This will affect the performance of the battery as well. on top of everything, the life of the battery will start to decrease.