Description
The XH-M240 Battery Capacity and Discharge Energy Testing Meter is a professional-grade diagnostic module engineered specifically to measure the true voltage, discharge capacity (in mAh), and discharge energy (in mWh) of single-cell 18650 lithium-ion batteries. Designed with dual working power supply support and an integrated 10W 8-ohm ceramic power resistor, this module provides high testing efficiency and precision for battery sorting and capacity verification.
Featuring a clear digital display and an onboard parameter memory function, the XH-M240 automatically saves your configuration settings so you can easily review test data during your next session. Built from high-quality electronic components with convenient 3mm mounting holes, it is an indispensable benchtop tool for electronics hobbyists, repair technicians, and DIY power pack builders.
Note: Batteries and external power supply cables are not included with this product. Requires an independent DC 5V–12V auxiliary power supply to operate the logic circuitry.
Key Features
- Comprehensive Battery Telemetry: Accurately measures and displays live battery voltage, cumulative discharge capacity (mAh), and discharge energy (mWh).
- Dual Working Power Design: Operates efficiently via an independent DC 5V–12V power supply while testing your 18650 cell.
- Integrated Discharge Load: Equipped with a built-in 10W 8-ohm power resistor and a fixed 500mA discharge current circuit for consistent testing.
- Parameter Memory Function: Automatically saves test parameters and settings, making it convenient to resume or check data later.
- Ultra-Low Standby Draw: Consumes only 5–7 mA of standby current when idle between test cycles.
- Solid Construction & Mounting: Features robust electronic components and standard 3mm installation holes for secure enclosure integration.
Benefits
- Determine True Cell Health: Stop guessing the capacity of harvested 18650 cells—measure exact Amp-hour capacity to weed out weak or failing batteries.
- Plug-and-Play Bench Testing: The onboard load resistor and clear digital readouts eliminate the need to wire up external breadboard loads or multimeters.
- Save Setup Time: Parameter memory ensures your preferred configurations are retained across testing sessions.
Applications
- 18650 Cell Grading & Sorting: Testing and sorting harvested laptop or power bank batteries for DIY projects.
- Power Bank & Repair Workbenches: Evaluating replacement cells before building custom lithium battery packs.
- Hobbyist Electronics Lab: Routine testing of single-cell Li-Ion storage performance and discharge efficiency.
Package Includes
- 1 x XH-M240 Battery Capacity and Discharge Energy Testing Meter Module
- 1 x Instruction Manual / Quick Guide
Specifications
| Parameter | Specification |
|---|---|
| Item Type | Battery Testing Equipment / Digital Capacity & Discharge Energy Tester |
| Model Series | XH-M240 |
| Battery Compatibility | Single-Cell 18650 Lithium-Ion Batteries (Batteries not included) |
| Auxiliary Operating Power Supply | DC 5V to 12V (Recommended external power source) |
| Voltage Measurement Range | 2.8V to 30.0V DC (Display Accuracy: 0.1V) |
| Discharge Current & Load | Fixed Discharge Current: 500 mA | Load Power: 10W, 8 $\Omega$ |
| Measurement Accuracy & Resolution | Capacity Measuring Accuracy: 1 mAh |
| Standby Current | 5 mA to 7 mA |
| Physical Product Dimensions (Length × Width × Height) | 110 mm × 80 mm × 25 mm (Mounting Hole Diameter: 3 mm) |
| Net Weight / Shipping Weight | ~50 g / 0.06 kg |


























