1. High Accuracy & Speed: Measure resistance (0-100Ω) and voltage (-110V to +110V) with 0.5% precision using 1KHZ AC method and four-wire Kelvin clips. 2. Smart Sorting Mode: Set custom voltage/resistance thresholds to instantly classify lithium batteries (soft pack/cylindrical) and screen defective units. 3. Portable & User-Friendly: Compact design with a 2.8Inch TFT screen, adjustable stand, and Type-C rechargeable 1200mAh battery. 4. Customizable Features: Personalize display colors, shutdown , and save calibration values for consistent performance. Description: 1. This Battery Resistance Tester combines precision engineering with intuitive design, perfect for engineers, technicians, and DIY enthusiasts. 2. Quickly test lithium batteries, measure small resistances, and quality control with its advanced 1KHZ AC technology and four-wire calibration. 3. The 2.8Inch TFT screen offers clear readings, while the portable build and long-lasting battery ideal for workshops or on-the-go use. Specifications: Voltage measuring range:0 - ±110V(DC) Voltage gear:Automatic, 1V, 10V, 100V Resistance measuring range:0 - 100Ω Resistance gear:Automatic, 10mΩ, 100mΩ, 1Ω, 10Ω Accuracy:±0.5% Instrument frequency:AC 1Khz Rechargeable:Type-C interface (5V/1A) User calibration:Support Sorting mode:Support Product Dimensions:135mm x 80mm x 24mm Product Weight:160g Test Lead Length:0.8m Battery capacity:1200mah Screen:2.8inch TF HD display Color:As shown Material:plastic Package Contents: 1 x Battery Resistance Tester 1 x Kelvin Clips Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.