XH-M609 Low Voltage Disconnect Switch 12-36V

The XH-M609 is a programmable low voltage disconnect module built to protect 12V, 24V, and 36V lead-acid and lithium-ion battery packs from over-discharge. Acting as an automatic battery cutoff switch, it continuously monitors battery voltage and disconnects the connected load the instant voltage drops to a user-set threshold, preventing deep discharge damage and significantly extending battery lifespan. A 3-digit red LED display shows real-time voltage readings, while an onboard momentary push button lets you easily program the disconnect and reconnect voltage points in fine 0.1V increments.

Since output voltage matches input voltage, the module drops seamlessly into existing battery circuits without added conversion stages. This makes it a practical choice for solar power setups, DIY power banks, e-bike and scooter battery packs, backup power systems, and robotics or drone projects where protecting an expensive battery pack from over-discharge is critical.

Its compact footprint and low power draw mean it can be integrated into tight enclosures without adding noticeable load to the system it protects. Whether you’re building a solar charge controller, safeguarding a lithium battery bank, or adding a low-voltage cutoff to an existing DC system, the XH-M609 offers hobbyists and engineers a reliable, low-cost way to add automatic over-discharge protection with precise, repeatable voltage control.

Specification:

• Model : XH-M609
• Input Voltage : DC 12V – 36V
• Output Voltage : Equal to Input Voltage
• Max Load Current : 10A (relay rated)
• Voltage Accuracy : 0.1V
• Voltage Error : ±0.1V
• Display : 3-Digit Red LED
• Power Consumption : Less than 1.5W
• Dimensions : 57 x 42 x 19mm