How to Check a Car Battery Charger With a Multimeter

How to Check Car Battery Charger With a Multimeter

As much as a car battery is an important component of your car, so as its charger. Having a battery charger that works well is a must since it’s a highly useful tool during battery emergencies. 

Making sure that your car battery charger is functioning well is necessary. After all, when the charger doesn’t work, it will not only cause frustration, it might also damage your battery as well.  

Checking your battery charger is a simple task, and there are many ways to do it. One of these ways is through the use of a multimeter, versatile testing device that can do a lot of works. In today’s post, we’ll teach you how to test your car battery charger with the use of a multimeter. 

What is a Multimeter? 

First off, what is a multimeter, by the way? You might hear it many times already since this famous device is one of the must-haves at home. 

A multimeter is a handheld electronic device that measures amps, voltage, and circuit resistance. This tool offers vast practical functions in the IT and electronic world, helping experts in cases like troubleshooting. 

You can also use a multimeter to check your car battery, and more than that, a lot of people also used this tool to test the state of their car battery charger. 

Testing a Car Battery Charger with a Multimeter 

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Testing a car battery charger with the use of a multimeter is easy to do. 

Your first step should be making sure that your outlet is working out properly.  Set up the testing device by attaching it to the pointing probes. Next, turn on the multimeter and make sure to set the AC volt setting after. 

As you can observe, outlets have vertical plugins; there, you must insert the probes correctly. Also, make sure to keep in mind that in North American standard outlets, type B outlet has a neutral spot on the left side, and on the right part is the live spot, while on the bottom is the grounded part. 

About 110 to 120 volts are the correct power of outlets that work well. However, if your outlet did not reach the said voltage, you may repeat the process and check the result once again. 

Finally, your next step is to connect the device to your car battery charger and have a thorough check. In this step, you only need to connect your car battery charger to the input jack of the multimeter. 

If it is receiving power, this indicates that your battery charger is working fine. If not, better to look for professionals to have it repaired or you buy a new one. 

Don’t Forget to Check the Power Cord!

Although multimeter can give you accurate data if your car battery is doing well, when checking the battery, might as well, check the power cord. Sometimes, you might suspect the charger for a different issue. 

Don’t forget to take a look at the power cord; sometimes, the problem lies in there. Breaks in the wire or in its protective coating will cause damage. If you see such a case, do not plug in your charger, but instead, get some professional to repair it. 

When Doing a Device Check, Safety Must Always be a Priority 

Lastly, when testing a device using a multimeter, safety should be your top priority. When multimeter is overloaded or incorrectly set its setting, it might cause damage or, worst might cause an explosion to the device. 

With many variations of outlets, you might also need to use different types of multimeter according to the outlet category. For instance, an appliance outlet should be tested with multimeter under category III. 

As you can see, testing your car battery charger does not require so much knowledge. Also, as a car owner, it’s good to have a multimeter with you at home. 

Since you already know how to test your battery charger, make sure to have it checked regularly. In this way, you are always ready in times of any battery emergency.

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