18650 Battery Capacity Tester Module – Voltage & Current Display for Li-ion Batteries

The 18650 Battery Capacity Tester Module is a compact and efficient device designed to test the real-time capacity, voltage, and current of lithium-ion batteries. Equipped with a bright 4-digit seven-segment digital display, it provides accurate readings during discharge, allowing users to evaluate battery health and performance easily.

This tester uses high-precision resistors to discharge the battery at a constant current, making it ideal for 18650 and other Li-ion batteries. It supports measurements of voltage, output current, and total discharge capacity (mAh), making it perfect for DIY projects, battery pack testing, or electronics repair tasks.

🔧 Key Features

• Accurate 18650 Battery Capacity Tester Module with voltage & current readouts
• Displays battery capacity in mAh during discharge
• 4-digit seven-segment display for real-time monitoring
• Uses 1W resistors to create constant current load
• Suitable for 18650 and other lithium-ion batteries
• Compact design for bench-top or portable use

📐 Technical Specifications

📌 Applications

• Testing capacity and discharge current of 18650 batteries
• Battery maintenance and health diagnostics
• DIY electronics and power supply experiments
• Lab testing and battery quality evaluation

💡 Why Choose This Tester?

The 18650 Battery Capacity Tester Module offers a fast, accurate, and affordable way to verify the performance of lithium-ion batteries. Whether you’re maintaining RC battery packs or analyzing cell degradation over time, this tool delivers the data you need clearly and reliably.

📦 Package Includes

• 1 × 18650 Battery Capacity Tester Module