Note: Fixtures and probes should be in complete and stable contact with the surface to be tested during the test;For voltage measurement, the product only supports DC voltage measurement. Please use according to the design range, do not input AC voltage or DC voltage above 150V to the product;It is forbidden to measure the power supply after the mains voltage is stepped down during charging. Product name Battery Voltage Internal Resistance Meter Measurement parameters AC resistance/DC voltage Basic accuracy 0.5% Current measurement range 0.001mΩ-200Ω Voltage measurement range 0.0001V±120V DC Charging Yes (built-in lithium battery) Maximum input resistance (none), voltage (150V) Resistance display resolution 20mΩ (0.001mΩ), 200mΩ (0.01mΩ), 2Ω (0.1mΩ), 20Ω (1mΩ), 200Ω (10mΩ) Voltage display resolution 5V (0.0001V), 50V (0.001V), 120V (0.1V) Language Chinese/English (switchable) Energy saving 0%-100% brightness display can be adjusted, 1-120 minutes without operation automatically shut down Communication interface MicroUSB Communication protocol MODBUSM Product Test Chart 1. Measure 21700 cylindrical lithium battery 2. Measure 18650 cylindrical lithium battery 3. Measuring sheet-shaped soft-packed lithium batteries 4. Measuring nickel with nickel sheet 5. Measure 10mOkon copper wire sampling resistance 6. Measuring sheet-shaped soft-pack lithium battery Package included: 1 x Tester 1 x Test stand 1 x Test clip 1 x Test pen Q & A Q: When charging with USB, it is observed that the charging current is small, and the charging is very slow?A: The charging current of the product design is about 600mA, but if the quality of the USB cable is poor (large internal resistance), the voltage will have a large line loss, and the charging current will also decrease accordingly. You can replace a better USB cable for faster charging. (Generally speaking, wires have wire loss, and the charging current is more normal than 200mA). Q: Can the product measure AC voltage?A: No. It is strictly forbidden to input AC signals and DC voltages higher than 150V. Q: Can the product be self-calibrated, and can it be restored to factory settings?A: It can be self-calibrated by the user, and the factory settings can be restored. The product has been calibrated before leaving the factory, and the parameters are saved inside the machine. Users can also calibrate themselves again according to their actual scenarios (generally, this is not necessary). If the calibration is wrong or it is found that the calibration is not as good as before The factory parameters of the product can be restored to the factory settings through the "restore factory" interface. Q & A Q: When charging with USB, it is observed that the charging current is small, and the charging is very slow?A: The charging current of the product design is about 600mA, but if the quality of the USB cable is poor (large internal resistance), the voltage will have a large line loss, and the charging current will also decrease accordingly. You can replace a better USB cable for faster charging. (Generally speaking, wires have wire loss, and the charging current is more normal than 200mA). Q: Can the product measure AC voltage?A: No. It is strictly forbidden to input AC signals and DC voltages higher than 150V. Q: Can the product be self-calibrated, and can it be restored to factory settings?A: It can be self-calibrated by the user, and the factory settings can be restored. The product has been calibrated before leaving the factory, and the parameters are saved inside the machine. Users can also calibrate themselves again according to their actual scenarios (generally, this is not necessary). If the calibration is wrong or it is found that the calibration is not as good as before The factory parameters of the product can be restored to the factory settings through the "restore factory" interface.