Ensure accurate battery diagnostics with this advanced Battery Voltage Resistance Meter, designed to measure both voltage and internal resistance with exceptional precision. Crafted from durable ABS material, this compact and portable battery tester features a built-in 3.7V 1000mAh rechargeable lithium-ion battery and a convenient Type-C charging interface, making it ideal for on-the-go use and continuous operation. Key Features: · Wide Measurement Range: Accurately measures internal resistance up to 999MΩ and voltage within 0.5V to 9.99V forward and -0.5V to -9.9V reverse, supporting comprehensive battery analysis. · Built-in Rechargeable Battery: Equipped with a 3.7V 1000mAh lithium-ion battery, allowing for cordless operation and easy recharging via Type-C interface for enhanced portability. · Clear LCD Display: Features an HTN wide viewing angle LCD screen that provides clear, real-time digital readings along with intelligent detection prompts for user-friendly operation. · Versatile Battery Compatibility: Suitable for testing a variety of batteries including 18650 lithium-ion batteries as well as AA and AAA alkaline batteries, ensuring broad application. · High Accuracy and Reliability: Offers an accuracy of ±1% and repeatability within ±1%, delivering consistent and dependable measurement results. · Multiple Applications: Perfect for battery production line testing, warehouse sampling inspections, photovoltaic inverter maintenance, battery upkeep, and electronic DIY projects. Specifications: · Item Type: Battery Voltage Resistance Meter · Material: ABS · Power Supply: Built-in 18650 lithium-ion rechargeable battery · Battery Capacity: 1000mAh · Measuring Range: 0-999MΩ · Test Voltage: 0.5-9.99V (forward), -0.5 to -9.9V (reverse) · Power Input: 5V (Type-C charging) · Accuracy: ±1% · Repeat Error: ±1% Package Includes: · 1 x Battery Voltage Resistance Meter This digital battery tester offers precise voltage and internal resistance monitoring within a compact and portable design. Its rechargeable battery and intuitive LCD display make it an essential tool for professionals and enthusiasts involved in battery testing, maintenance, and quality control across multiple applications.