XH-M239 – Lithium Battery Capacity Tester Module

The XH-M239 is a dedicated tester module for accurately measuring the real capacity of 18650-type lithium batteries. Controlled by an intelligent chip, it provides precise and reliable performance data on a clear LCD screen.

Key Features
- Measures battery capacity in both milliamp-hours (mAh) and milliwatt-hours (mWh).
- Features a clear LCD screen for easy viewing of measurement results.
- Dual power options: can be powered by an external DC 5-12V source or a separate 18650 battery installed in the left power slot.
- Performs a discharge test with a current of approximately 500 mA under a 10W load.
- This module is designed for discharge testing only and does not have a charging function.

Applications
This module is an essential tool for verifying the actual capacity of new or salvaged 18650 cells. It is ideal for hobbyists and technicians who need to sort, match, or evaluate the health of batteries for custom projects, power banks, or device repairs.