The WZ-XDNZ battery internal resistance tester uses the instantaneous discharge method to measure the internal resistance of the battery. Through analysis and research on the actual working conditions of batteries, it can be found that the ports of batteries exhibit impedance characteristics in the external circuit. In practical use, the inductance formed by the electrodes, connecting wires, etc. of the battery is generally not considered in analysis and research due to its low frequency of use, short lead wires, and weak inductance.

The WZ-XDNZ battery internal resistance tester can measure voltage, internal resistance, and estimate the remaining capacity of the battery.

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1. Can test the voltage, internal resistance, and capacity of the battery;

2. Can be used as a voltmeter to test battery voltage;

3. Can automatically switch between batteries of different voltage levels;

4. Can calculate the capacity of the battery;

5. Synchronized storage of test data;

6. Provide audio prompts for the discrimination results;

7. Battery charging status indication;

8. Real time display of local battery voltage;

9. Automatic standby without operation;

10. Test data recording and storage;

11. Exchange data through USB drives and analysis software systems.