Get professional-level battery diagnostics with the Aideepen Internal Resistance Meter Tester (TS457 / T459)—a powerful and precise tool designed for testing lithium batteries, including 18650 cells, with laboratory-grade accuracy. Perfect for engineers, DIY electronics enthusiasts, and battery repair work, this device helps you quickly identify battery health, performance, and quality.
Using an advanced AC 4-wire measurement method, this tester delivers highly accurate readings for both voltage (0.001V–45V) and internal resistance (0.1mΩ resolution). Whether you're sorting battery packs, repairing power banks, or testing used lithium cells, this tool gives you clear and reliable data every time.
The device supports multiple smart features including data logging, display fine-tuning, adjustable backlight brightness, and auto power-off settings, making it flexible and user-friendly for both beginners and professionals. The ability to store multiple measurement groups helps you track and compare battery performance over time.
Powered by DC 5V input or 18650 battery supply, this compact tester is easy to integrate into DIY projects or testing stations. Its small size and clear display make it ideal for workshop use, educational labs, and electronic repair setups.
Whether you're working with battery packs, electronic devices, or energy storage systems, the TS457/T459 internal resistance meter is a must-have tool for ensuring safety, performance, and long battery life.
