Lithium Battery Voltage and Internal Resistance Tester (Mainframe + Probe)

Internal resistance is an important indicator to measure battery performance. Under normal circumstances, the discharge capacity of the battery with small internal resistance is strong, which supports large current discharge; the discharge capacity of the battery with large internal resistance is weak. Internal resistance is like age.By measuring the internal resistance, good or bad batteries and paired batteries can be screened out. Process The series battery pack needs to match the cell capacity, internal resistance and voltage. The performance of the battery pack follows the "wooden barrel" principle, and the performance depends on the worst battery. Basic accuracy of resistance 0.5% Resistance measurement range 1u0 ~ 2000 Basic voltage accuracy 0.5% Voltage measurement range 0. 1mV ~ +100VDC Test signal frequency Communication 1KHZ Test signal current 20mQ gear 50mA / 200mQ/20 gear 5mA / 200/200Q gear 0.5mA Serial port: It must be turned on on the instrument to connect to the computer, and it is turned off by default. The baud rate is 115200 Resistance range: Automatic and manual measuring range Voltage range: 3 Measuring range automatic and manual Display updates: 5 times/second Resistance calibration: Each range is manually calibrated separately, which does not affect each other. Voltage calibration: Each range is manually calibrated separately, which does not affect each other. Factory settings: Save the factory information and restore the factory state with one click. It belongs to the resistance calibration model country, re-calibrate, enter the electric sun calibration, and press the "SET" button. Calibration XY calibration: When entering CALXY calibration, you must clamp the calibration resistance of about 20m2, press the ruler key for a long time, and the X and y calibration results will appear. It is better to calibrate in the same number many times. Energy-saving settings: Charging power supply: F: 10-minute delay, aut

• High accuracy.
• Wide range of measurement