XH-M609 DC 12V-36V Battery Over Voltage Discharge Protection Switch Module Charger Lead acid Lithium ion

Specifications:

• Product: Battery Over Voltage Discharge protection module
• Model: XH-M609
• Power Supply: DC 12 V- 36 V
• Output voltage: Equal to power supply voltage
• Control precision: 0.1 V
• Display accuracy: 0.1V
• Voltage error: +/-0.1V
• Compatible Battery: lead acid, lithium-ion battery
• Power consumption: Less than 1.5 W
• Net weight: 28 g
• Dimensions(L*W*H): 57 * 42 * 19 mm

Applications

• Solar Power Systems: Protects solar battery banks from draining overnight.
• Portable Power Stations: Safeguards DIY lithium-ion battery packs.
• Robotics & Drones: Prevents deep-discharge damage to expensive 3S/4S/6S LiPo batteries during operation.
• E-Bikes & Scooters: Serves as an excellent secondary cutoff for 24V and 36V mobility battery packs.

Features:

• Programmable battery low voltage disconnect switch for DC 12-36V lead acid battery and lithium-ion battery.
• Protection switch module: Automatic control circuit connection
• Automatic charging and power-off
• Real-time voltage monitor
• Autosave setting
• Discharge protection.
• Prolong battery life.
• On-board momentary push button to set the low voltage disconnect parameter and 3-digit red LED display the parameter easy to operate

Package Includes:

• 1 x XH-M609 DC 12V-36V Battery Over Voltage Discharge Protection Switch Module

Frequently Asked Questions (FAQ)

• What is the main purpose of the XH-M609?
  It monitors battery voltage and disconnects the load when the voltage drops too low, preventing deep-discharge damage.
• What voltage range does the XH-M609 support?
  It supports any DC battery from 12V up to 36V.
• Can I use this module with a standard 12V car battery?
  Yes, it is fully compatible with 12V lead-acid batteries.
• Does this module work with 24V lithium battery packs?
  Yes, it is ideal for 24V lithium-ion or LiFePO4 setups.
• How do I configure the low-voltage cutoff?
  Double-press the '+' button until the display flashes, then use the buttons to set your desired minimum voltage.
• How do I set the reconnection (hysteresis) voltage?
  Double-press the '-' button to set the voltage difference required for the relay to reconnect.
• Is the XH-M609 a battery charger?
  No, it is a discharge protection switch. It does not regulate charging current.
• Does this module protect against overcharging?
  No, this specific module strictly protects against under-voltage (over-discharging).
• What is the maximum current rating of the onboard relay?
  The onboard relay is typically rated for up to 10A continuous DC current.
• Can I use this for solar panel battery banks?
  Yes, it is heavily used to disconnect loads when solar batteries run dry.
• Will it remember my voltage settings if power is disconnected?
  Yes, the onboard memory retains your custom voltage thresholds even without power.
• How accurate is the digital voltage display?
  The display and detection logic are accurate to within 0.1V.
• Why is my relay clicking on and off rapidly?
  Your hysteresis (return voltage) is set too low. When the load disconnects, battery voltage naturally bounces back up, triggering the relay again. Increase the '-' setting.
• Can it be used with a 36V e-bike battery?
  Yes, as long as the fully charged peak voltage does not exceed the absolute maximum rating of the module's capacitors (typically around 40V limit).
• Does the module consume power from the battery it's protecting?
  Yes, it consumes a very small amount of power (< 1.5W) to run the LED display and circuitry.