12V Battery Low Voltage Protection Module XH-M609 – Auto Cut Off Switch BMS for 12V-36V Batteries

Overview 

The XH-M609 Low Voltage Disconnect Module is an essential upgrade for any 12V battery system. Whether you are using a Lead-Acid (Wet/Dry) battery for your UPS or a DIY Lithium pack for solar lighting, this board ensures the voltage never drops below your safety limit. Featuring a bright 3-digit LED display and a high-current relay, it allows you to set precise “Cut-Off” and “Turn-On” voltages, giving you total control over your battery’s health.

Key Features

• Universal Compatibility: Works with any battery system from 12V to 36V (including Li-ion, LiFePO4, and Lead-Acid).

• Smart Memory: Saves your settings even if the power is completely disconnected.

• Programmable Hysteresis: Set exactly when the battery should disconnect (e.g., 10.5V) and when it should reconnect (e.g., 12.0V).

• High-Current Relay: Capable of switching loads up to 20A (peak), though 10A-12A is recommended for long-term reliability.

• Instant Monitoring: The real-time digital display acts as a built-in voltmeter.

Technical Specifications