Xh-m181 Datasheet _hot_ 〈2025-2027〉

The power terminals are usually clearly marked or use a standard terminal block.

Based directly on the implicit application notes in the , follow these steps to avoid destroying your module.

| Model | Primary Function | Form Factor | |-------|------------------|--------------| | | Battery discharge capacity tester (constant current load) | Large heatsink + fan | | XH-M181 | Voltage protection (under/over) with relay | Compact board, 2 relays | | XH-M182 | Battery level indicator (LED bar graph) | Small board, 10 LEDs | xh-m181 datasheet

| Pin Label | Function | Description | |-----------|----------|-------------| | | Positive Supply & Sense Input | Connect to the positive terminal of the battery or DC power source you want to monitor. | | COM (GND) | Common Ground | Connect to the negative terminal of the power source. | | NC | Not Connected (or second GND) | Some versions have an auxiliary ground. Leave unconnected unless specified. |

Relay ON: ~72mA (coil + LM393). Relay OFF: ~15mA. Very efficient for battery monitoring. The power terminals are usually clearly marked or

This article serves as the ultimate — pulling together every technical detail you need to successfully integrate this module into your project.

While the XH-M181 is standalone, you can read its relay status using an Arduino’s digital input (use a voltage divider from the relay coil or LED signal). | | COM (GND) | Common Ground |

chip, this Class D amplifier provides powerful stereo output while maintaining a small footprint. Technical Specifications PAM8610 (Class D / PWM Modulation) Supply Voltage DC 6V – 15V (12V recommended) Output Power 10W x 2 (at 8Ω) / 15W x 2 (at 4Ω) Frequency Response 20Hz – 15kHz Static Current 20mA (at DC 12V) Signal-to-Noise Ratio Efficiency Harmonic Distortion Board Dimensions ~ 30mm x 25mm x 2.5mm Key Features High Efficiency:

If you have purchased one of these modules and are struggling to find official documentation, you are not alone. Like many generic electronics modules produced by manufacturers in Shenzhen, the XH-M181 often arrives without a physical manual. This article serves as a comprehensive substitute for the official , providing you with the technical specifications, pinout diagrams, and practical usage tips you need to get your project up and running.