Manual | Xh-m608
Connect your charger or load here. The relay acts as a switch based on your voltage settings. 3. Menu Navigation (The "P" Settings) To enter the menu, short press SET to cycle through modes:
The XH-M608 uses a coded menu ( P1 through P4 ) to manage its operations. To enter the menu, . Use the + and - buttons to navigate, and press SET briefly to modify a parameter. P1: Lower Voltage Limit (Start Voltage)
When battery voltage rises to the Upper Limit (UP) .
Managing battery health requires precision. Overcharging or deeply discharging a battery shortens its lifespan and can cause permanent damage. Xh-m608 Manual
The LED will display the current under-voltage protection parameter (default is often 12V).
Connect to the negative terminal of the battery.
Always disconnect power sources before wiring to avoid short circuits. Connect your charger or load here
If the voltage reading seems off, many users cross-reference with a standalone multimeter to verify the ±0.1V accuracy. AliExpress wiring diagram or a step-by-step walkthrough for setting the overvoltage protection Voltage Protection Board XH-M608 - Make Electronics
⚠️ The XH-M608 features direct output. The voltage supplied to the input terminals will pass directly to the output terminals when the relay is active. Always ensure your power source matches the voltage requirements of your battery and load. 1. Charging Control System (Solar/Mains Charger)
Use the or - buttons to toggle between P1 (Charging) and P2 (Discharging). Press SET once to confirm your choice. Step 2: Set the Lower Voltage Limit (dn) After confirming the mode, the screen will display dn . Menu Navigation (The "P" Settings) To enter the
Press the left button to increase the voltage or the right button to decrease it. Wait 3 seconds to save. 4. Operational Modes (Use Case Examples) Mode 1: Charging Control (Overcharge Protection) Charge a 12V lead-acid battery and stop when full. Setup: U₁ (lower) = 12V, U₂ (upper) = 14.4V.
Stop Light (usually Red): Illuminates when the relay is open (power is cut off).
1. Smart Charger Control Configuration (Overcharge Prevention)
In this mode, the module acts as an automatic battery charger switch.
Route the positive charging wire from your power supply to the relay terminal.