A battery is a power source consisting of one or more electrochemical cells with external connections for powering electrical devices such as flashlights, mobile phones, and electric cars. When a battery is supplying electric power its positive terminal is the cathode and its negative terminal is the anode.
With so many battery-operated products in the house, multimeters have become the need of this day. Today, we are here to tell you how to use one correctly. From TV and AC remotes to battery-operated lights, there are a lot of products that need proper functioning cells to run. Even our cars cannot run without cells.
Check Battery Voltage Using a Multi-meter
- Firstly take a multimeter and place it on the table. Also, bring in the battery you want to test.
- To correctly measure the voltage, turn your switch dial to DC voltage measurement.
- This needs to be done because a battery generates DC power, and this means you will need to measure it with the same unit. So it is essential to know the maximum voltage of the battery.
- Set the dial to 20 volts, which is the maximum range.
- Connect the test probes to your cell, with the black wire meeting the negative. The red wire should meet the positive and then check its display.
- If you get a number that is higher than 7 for a 9-volt battery, it is still usable, and the cell will last for some more time.
- On the other hand, if it is a dead battery, it would show results below 1. If that is the case, it is time to buy a new one.
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