Today you will learn how to test a battery with a multimeter, as you know that a multi-meter is a testing device or meter which we use for multi-testing, but as you know that batteries are numbering in those electric devices which have a history and we use more than other devices. In daily life we use batteries in our cars, we use them in our mobile phones and laptops etc. There are different types and shapes of batteries. Some we use for high load and some we use for a low load. Some batteries are big in size and some are Small.
But the batteries have a life and expiration date, for example, we use batteries with inverter / UPS for emergency power supply. A high-quality brand batter work very well with an inverter for 2 years. A car battery has also a time of life, some batteries work for 1 year and some work for 2 to 3 years. However, a better life depends on the quality and its type. Today I am writing about how to test batter with a multimeter. In the post, you will learn the testing of batter by using the analog and digital multimeter.
How to test the battery with a multimeter
The testing of batter with a multimeter is too simple and easy, you can easily test your battery with a multimeter by setting the multi-meter knob on DC volts. But note that if you testing a 12 volts battery then set the knob on the option which is designed for 1 volt to 12 volts or higher. i.e if you are testing a mobile battery of 3.7 volts then you can set your multimeter on 5 DC volts or 10 volts testing option. But this is only for the analog multimeter. In digital, you have some options like 10, 50, 200, and 600 DC (direct current) volts etc. So if you are testing a better of 12 volts then you can use the 20 or 50 volts option in your digital multi-meter.
Now come to step one if you are testing a battery which is 12 volts then you can easily test your battery by using an analog or digital multimeter. You need a multimeter in which DC volts testing option is available. Now set your multi-meter knob on DC volts testing. Connect the multimeter red lead to the positive terminal of the battery and the black lead to the negative terminal. Now if the meter shows 12 volts then your battery is in good contention-, however, the better checking method is that to test your battery during use time. My meaning connects a 12-volt fan to the battery (a car engine cooling fan) now test your battery, now if your battery volt reading or 11.8 or 11.9 or steel reading is 12 volts then it means that your battery working state is good or it’s is a good battery. And if the battery shows 5 or 6 volts and your fan is also running slow then charge your battery and fully charge. Check it again if it’s shown the same problem or has a short- backup then it mean that your battery life is over and this battery is not good working state. The better option is to change this battery.
Do follow the same method which I told in my above words and which I have shown in the below diagram.
In the above test battery with a multimeter diagram, I only showed the method of testing the battery with a digital multimeter, and I showed a car battery test. I set the meter knob to 20 volts range and I check a car battery which is 12 volts but you can also check your mobile battery by using the 20 volts option in the digital multimeter.
So the above diagram I show how to test a car battery using a digital multimeter. Now come to do it piratically.
- First of all, set your meter on DCV or DC voltage testing. As I have shown in the below image.
Now connect the negative lead to the negative terminal of the battery and the positive (red lead) to the positive terminal as shown in the below image of testing the battery by using a digital meter.
Now see the reading
How to test battery with analog multimeter
The testing and setting methods of both meters are the same, First of all, set your meter on DC V testing and then connect the black lead to the battery’s negative terminal and the red lead to the positive terminal of the battery. As I have shown below images test batter with a multimeter.
- Step one Select DCV by using the knob
- Step 2 Connect the meter leads to the battery as I have shown below.
Also, read Below
The testing of a mobile battery is also the same just like testing a car battery however IN SHA ALLAH I will write about the testing of a mobile battery in my incoming posts. Now I hope you lean about testing the battery with a multimeter, however, if you have any questions regarding the post then ask me in below comment section.