Testing a solar battery using a multimeter is a thing everyone in this new generation should be able to do. Because most of all the electronic devices we use in our everyday life make use of battery cells to function. Starting from our personal computers, car batteries, motorcycles, and even our solar system backup batteries, to name but a few. All need batteries to function well. And is always our concern to know when our batteries are good and healthy enough to carry out their tasks and when to replace them with new ones. Knowing how to test a solar battery using a multimeter is a thing we all should be familiar with in other to detect good or bad batteries from our solar energy battery bank.
How to test battery voltage using a multimeter.
With a good digital multimeter like flukes, seems to be best to carry out this task, as is more reliable and easy to make for us.
There are so many multimeters that are used to test batteries, starting from analog multimeter to digital multimeter. The multimeters are of so many types depending on the one you can afford in the market. But all of them work in the same or similar ways.
To test a battery using a digital multimeter the following steps should be followed.
Step 1. Laying hand on a particular multimeter to use.
Multimeters come in different rang and serving purposes. But for the sake of testing our solar battery voltage, we can make use of a lower-range multimeter. You can purchase one that will suit you from the online store here.
Make the connection of the multimeter probe accordingly. Make sure you don’t interchange the probes. The Black probe goes to the COM port of the meter, while the Red probe is connected to the V port of the meter.
Step 2. Setting the multimeter for measurements.
Set the central knob of the meter to DC voltage mode. Depending on the voltage of the battery you are measuring, always set the voltage in the meter above the measuring voltage of the measuring. For instance, when testing a 12V battery, set the knob to a higher voltage of 15-20V in the meter. This is to prevent the battery voltage from damaging the multimeter.
Step 3. Separate the battery if it is interconnected.
for us to get accurate measurements of the battery, we need to isolate them all and test them one after the other.
disconnect the battery from inverter from other batteries connections and make the two terminals to be accessible. If it is a car battery you can disconnect one terminal of the battery or equally remove the two thermal.
step 4. Testing for the voltage of the solar battery with a multimeter.
ON the meter and connect the probes directly to the battery. Considering the polarity of the battery, red goes to the positive terminal of the battery while black goes to the negative terminal.
Step 5. Taking down the battery voltage reading from the multimeter.
On the the screen of the meter, Immediately after the meter is connected, the voltage of the battery will show on the meter. If the meter displays a value greater to the original battery voltage, it shows the battery is good. But when it displays a value below the minimum voltage, it shows is the battery is no longer healthy and needs to recharge or change. In other to revive its life back.
How to know if a solar battery is good or faulty.
After testing the battery using a multimeter, most times the valve we got determined the condition of the battery. When the value got from the test is higher than the rated value of the battery it shows the battery is in good condition. Let, for instance, a 12V battery when measured and got a value of 12V or 13V, show the battery is good. But when the value got is lower than the rated value, it shows the battery is undercharged.
How to test a battery using a battery tester.
Aside from the multimeter that tests the volt and the current battery. Other battery testing devices can easily be used to test the state of a solar battery. This tester tells you the state of your battery, whether is ok, faulty, fully charged, or undercharge.
to test the battery using this tester, ON the tester and connect the probe of the terminal of the battery Making sure the polarity is not exchanged. Red to red and black. To black. The state of the battery will automatically be shown on the screen of the testing meter.
Conclusion. Testing of our solar battery is a routine test we need to carry out on our battery from time to time. When we test the battery we know the bad ones and then replace them before it damages others. And with regular testing of the battery, the issue of a total breakdown of the system will be detected before it occurs.