Feature: 1. EXCELLENT CHIP: This lithium battery analyzer uses 18 bit AD conversion chip with high resolution, ensures accurate voltage and resistance measurements. 2. HIGH RESOLUTION: This battery tester adopts double 5 digit display, the highest resolution value of measurement is 0.0001mΩ and 0.1mv, with clear display. 3. MULTIPLE FUNCTION: Auto multi unit switching, covering a wide range of measurements, auto polarity judgment and display, no need to distinguish battery polarity. 4. APPLICABLE BATTERY: Adopt 1KHZ AC current measurement method, with high accuracy, suitable for measurement of various battery or battery packs below 100V. 5. OTHER FUNCTION: With computer serial connection terminal, expanding the measurement and analysis functions of the instrument, convenient and durable. Specification: Item Type: Lithium Battery Analyzer Material: ABS, Aluminum Alloy Power Supply: AC100-240V Power Supply Current: 50-100ma Measurement Parameters: ACR, DCV Measuring Range: R: 0-2000Ω, V: 0-±100VDC Resolution: 0.0001mΩ (100μΩ), 0.1mv (100μv) Accuracy: R: ±0.5%, V: ±0.5% Test Speed: 5 times/S Test Range: Automatic switching Measurement Input: Balanced system Measuring Probe: LCR Kelvin 4 wire clamp. Package List: 1 x Tester1 x USB Cable1 x Battery Holder1 x Battery Clip Line1 x Power Cord1 x User Manual Note: 1. Pay attention to whether there is dirt or oxide layer on the positive and negative electrodes of the battery.2. The positive and negative electrodes of the battery must be wiped with fine sandpaper to expose the metallic luster.3. Pay attention to whether the contact is good, otherwise the measured internal resistance value will be too large or the measured value will be different each time.