Feature: 1. High Precision Measurements: The battery internal resistance tester guarantees accurate results every time with its ability to measure voltage from 0-100V and resistance from 0-200Ω with a basic accuracy of 0.5%. 2. User-Friendly Display: The battery tester features an easy-to-read LCD screen with backlight, providing quick updates five times per second, allowing for efficient and time-saving testing procedures. 3. Energy Efficient: This tester features a 10-minute delay and will automatically shut down if not in use, ensuring energy conservation and extended device longevity. 4. Compact \u0026 Portable: The battery internal resistance tester is designed with a compact size and lightweight structure, making it highly portable and allowing for easy transportation and convenient use in various settings. 5. Wide Application: This tester is capable of measuring a wide range of battery types, including lithium, lead-acid, nickel-chromium, and dry batteries. Perfect for car repairs, scooter tests, battery processing tests, and more. Specification: Features: High Precision Measurements: The battery internal resistance tester guarantees accurate results every time with its ability to measure voltage from 0-100V and resistance from 0-200Ω with a basic accuracy of 0.5%. User-Friendly Display: The battery tester features an easy-to-read LCD screen with backlight, providing quick updates five times per second, allowing for efficient and time-saving testing procedures. Energy Efficient: This tester features a 10-minute delay and will automatically shut down if not in use, ensuring energy conservation and extended device longevity. Compact & Portable: The battery internal resistance tester is designed with a compact size and lightweight structure, making it highly portable and allowing for easy transportation and convenient use in various settings. Wide Application: This tester is capable of measuring a wide range of battery types, including lithium, lead-acid, nickel-chromium, and dry batteries. Perfect for car repairs, electric motorcycles, battery processing and testing, and more. Specifications: Item Name: Battery Tester Main Material: Plastic Basic accuracy: resistance 0.5%, voltage 0.5% Adjustment: Resistance and voltage are corrected separately Measuring Range: 1μΩ~200Ω(Resistance), 1mV~±100VDC (Voltage) Test Signal Frequency: AC 1KHz Test Signal Current: 20mΩ 50mA, 200mΩ/2Ω 5mA, 20Ω/200Ω 0.5mA Resistance Range: 6 range automatic and manual Voltage Range: 3 ranges automatic and manual Display Update: 5 times/second Automatic shutdown: 10 minutes delay, automatic shutdown without any operation Display Result: LCD display, direct reading Battery: built-in 1000mAh lithium battery Language: Chinese, English Working Environment: -10 ° C~+40 ° C, relative humidity: