2/4 Channel 18650 Lithium Battery Capacity Tester Digital Power Detector Module

Introducing the 18650 Lithium Battery Capacity Tester: a versatile tool designed for efficient and precise battery testing. This advanced module supports dual-channel and four-channel testing, complete with automatic internal resistance measurement, making it perfect for evaluating the performance of household batteries.

### Key Features:

- Dual-Channel Testing: Operates independently for each channel, supporting separate charging and discharging.
- Automatic Cycles: Seamlessly manage up to 9 charge and discharge cycles without manual intervention.
- Compatibility: Perfect for 18650 batteries, with adaptability for 21700 batteries (battery base modification required).
- Charging Control: Utilizes a dedicated charging chip to handle up to 1A, stopping at a full charge voltage of 4.2V.
- Cooling & Protection: Features active fan cooling with overheating protection.
- User-Friendly Interface: Supports both Chinese and English, with easy channel switching and clear display prompts.
- Compact Design: Measures 188×50×36mm, ensuring portability and efficiency.

Whether you're experimenting with DIY electrical projects or maintaining battery health, this tester offers precision and reliability in one compact module.