How to test the power level

How to test the power level

In the long run, it is necessary to buy an electronic instrument with a DC clamp meter, as shown in the figure。

This DC clamp meter can not only accurately test the working current, but also test the voltage with a test lead. Front end

The pliers are clamped on the positive red line of the battery to test the working current. Use a test pen to weld the positive and negative electrodes of the battery

Click to test the voltage.

Voltage x current = power