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The CR2032 Battery Test DIY

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    • 1). Set your multimeter to measure direct current (DC) voltage as your CR2032 battery produces DC. Turn the dial or press the appropriate buttons on the front of the meter to get the setting.

    • 2). Look at your CR2032 battery to ascertain the two polarities. The flat top plate has a "+" symbol embossed on it, meaning positive. The other side is slightly raised, but doesn't have a mark and is the negative terminal.

    • 3). Put the probe on the end of the red wire from the meter onto the CR2032 battery terminal labeled "+" and put the probe on the end of the black wire onto the other battery terminal.

    • 4). Look at the multimeter display to read the voltage. It reads 3 volts, if your battery is charged. A reading below 2.5 volts means you need to replace the CR2032 battery.

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