1. Introduction
The diymore XY-CD63L is a versatile 30A Battery Charging Control Module designed for managing the charge and discharge cycles of various batteries, including lithium batteries, within a 6-60V DC range. It features a liquid crystal display for real-time voltage, percentage, and time monitoring, along with robust voltage protection capabilities to prevent under-voltage power loss and extend battery life. This manual provides detailed instructions for its setup, operation, and maintenance.


2. Safety Information
- Ensure all connections are secure and correctly polarized before applying power.
- Operate within the specified voltage range of 6-60V DC.
- Do not exceed the 30A current rating of the relay.
- Avoid short circuits, which can damage the module or connected components.
- Keep the module away from moisture, dust, and extreme temperatures.
- This product is a voltage controller and acts as a switch; it cannot transform voltage.
3. Product Overview
The XY-CD63L module provides intelligent control over battery charging and discharging processes. It allows users to set upper and lower voltage limits to automate battery management, protecting against overcharge and over-discharge. The integrated LCD displays critical information, and intuitive buttons enable easy parameter configuration.
4. Specifications
| Feature | Specification |
|---|---|
| Model Number | XY-CD63L |
| Brand Name | diymore |
| Supply Voltage Range | DC 6-60V |
| Relay Current Capacity | 30A |
| Display | Liquid Crystal Display (Voltage, Percentage, Time) |
| Type | Voltage Regulator / Battery Charging Control Module |
| Package | SMD |
| Dimensions (L x W x H) | 62mm x 57mm x 22mm |
| Weight | 51g |

5. Setup and Installation
The XY-CD63L module requires careful wiring to ensure proper function and safety. Always disconnect power before making any connections.
5.1. General Wiring Principles
- VIN+ / VIN-: These terminals are for the input power supply to the module itself and for sensing the battery voltage. Connect the positive (+) and negative (-) terminals of your battery (or power source) here.
- OUT+ / OUT-: These terminals are for connecting the charger (in charging mode) or the load (in discharge mode). The relay controls the connection through these terminals.
- Ensure correct polarity for all connections.
5.2. Charging Mode Wiring Diagram

In charging mode, connect your DC power supply (charger) to the VIN+ and VIN- terminals. Connect the rechargeable battery to the OUT+ and OUT- terminals. The module will control the charger's output to the battery based on your set voltage limits.

5.3. Discharge Mode Wiring Diagram

In discharge mode, connect the rechargeable battery to the VIN+ and VIN- terminals. Connect your load (e.g., a light, motor) to the OUT+ and OUT- terminals. The module will connect/disconnect the load from the battery based on your set voltage limits to prevent over-discharge.

6. Operating Instructions
The XY-CD63L module operates in two main modes: Charging (IN) and Discharging (OUT). Parameters are set using the UP, SET, and DOWN buttons.


6.1. Charging Mode (IN)
This mode is used for battery charging control. You set an upper limit voltage (UP) and a lower limit voltage (dn).
- When the battery voltage is less than or equal to the lower limit voltage (dn), the relay turns on, and the charger begins charging the battery.
- When the battery voltage reaches or exceeds the upper limit voltage (UP), the relay disconnects, stopping the charging process.
- During charging, the 'IN' indicator on the LCD will flash.
6.2. Discharge Mode (OUT)
This mode is used for battery undervoltage protection. You set an upper limit voltage (UP) and a lower limit voltage (dn).
- When the battery voltage is greater than or equal to the upper limit voltage (UP), the relay turns on, and the load begins discharging the battery.
- When the battery voltage drops to or below the lower limit voltage (dn), the relay disconnects, stopping the discharge and protecting the battery from over-discharge.
- During discharging, the 'OUT' indicator on the LCD will flash.
6.3. Button Functions

- UP Button:
- Short Press: Toggles the display between voltage percentage (%) and time.
- Long Press (5 seconds): Switches between Charging Mode (IN) and Discharging Mode (OUT).
- SET Button:
- Short Press: Displays the currently set parameters.
- Long Press: Enters the parameter setting interface. Here you can set:
- UP: Voltage Upper Limit
- dn: Voltage Lower Limit
- OP: Conduction Time (0-999 seconds)
- dOP: Delay Conduction Time (0-999 seconds)
- FOP: Forced Conduction Time (0-10 seconds, available only in discharge mode)
- DOWN Button:
- Short Press: Toggles the relay enable (emergency stop function). When disabled, the LCD displays 'OFF', and the relay is disconnected.
- Long Press: Sets the status of the LCD backlight:
- L-P: Backlight is always on.
- ON: Backlight automatically turns off after 5-10 minutes. Any button press will wake it up.


6.4. Voltage Percentage Calculation
The module calculates the voltage percentage using the formula:
Battery Voltage / (Upper Limit Voltage - Lower Limit Voltage)

7. Maintenance
- Keep the module clean and free from dust and debris.
- Store in a dry environment to prevent moisture damage.
- Regularly check wiring connections for looseness or corrosion.
- Avoid exposing the module to direct sunlight or high temperatures for extended periods.
8. Troubleshooting
- Module not powering on: Check input voltage (VIN+ / VIN-) and ensure it is within the 6-60V range and correctly polarized.
- Relay not activating: Verify that the set UP and dn voltage limits are appropriate for your battery and mode. Check if the relay enable (emergency stop) function is active (LCD displays 'OFF').
- Incorrect voltage readings: Ensure proper connection to the battery terminals. Calibrate if necessary (though no specific calibration steps are provided, general electronic practice suggests checking connections first).
- Important Note: This product is a simple voltage controller that uses a relay to switch output. It functions purely as a switch and cannot transform or regulate voltage levels beyond its switching capability. If you require voltage transformation, a separate module is needed.
9. User Tips
- For optimal battery health, set your voltage limits carefully according to your battery's specifications (e.g., for a 12V lead-acid battery, typical charge cut-off might be 14.4V and discharge cut-off around 10.5V-11V).
- Utilize the 'dOP' (delay conduction time) parameter to prevent rapid cycling of the relay, which can occur with fluctuating battery voltages, especially under load or charge.
- The 'FOP' (forced conduction time) in discharge mode can be useful for ensuring a minimum discharge period if needed, but use with caution to avoid over-discharging.
- Consider using a multimeter to verify voltage readings independently, especially during initial setup, to ensure the module is accurately sensing battery voltage.
10. Warranty and Support
For any issues or questions regarding your XY-CD63L module, please contact the seller or manufacturer directly. Keep your purchase records for warranty claims. Specific warranty terms may vary by retailer.