1. Introduction
The XY-BT13L 30A Battery Charge Control Module is designed to efficiently manage battery charging and discharging processes, ensuring battery longevity and protection. This module prevents overcharging and under-voltage conditions, featuring robust DC voltage protection and an automatic full power cut-off mechanism. It safeguards against power loss and voltage irregularities, making it ideal for a wide range of applications including solar power systems, electric vehicles, and UPS backups, ensuring reliable performance under various conditions.
2. Features
- 30A fully automatic battery charge and discharge management
- Precision coulometer for accurate battery capacity measurement
- Overcharge and overdischarge protection
- Overvoltage protection
- Under-voltage protection
- Overcurrent protection
- Low battery alarm
- Over-temperature protection
- Delayed conduction
- Strong guidance circuit
- UPS uninterruptible power supply mode
- 10A bidirectional current detection
- Automatic calibration of battery capacity
- Supports battery voltage range of 10V-110V
- Supports serial communication standard Modbus protocol
- Equipped with a precision external clock crystal oscillator for accurate timing
- Features a 10A precision bidirectional current sampling chip
- Powered by a 48-pin powerful MCU controller operating at 64M frequency for faster computing speed
- Intelligent control and seamless connection for fully automatic charging and discharging management
3. Specifications
| Parameter | Value |
|---|---|
| Product Model | XY-BT13L |
| Battery Voltage Range | 10-110V |
| Adapter Input Voltage Range | 10-110V |
| Maximum Current | 30A |
| Voltage Accuracy | ±0.5% + 1 digit |
| Current Accuracy | ±0.5% + 3 digits |
| Current Resolution | 0.01A |
| Voltage Resolution | 0.01V |
| Operating Temperature | -10-60°C |
| Material | PCB |
| Origin | Mainland China |
| High-concerned chemical | None |
4. Package Contents
- 1 x XY-BT13L Battery Charge Control Module
5. Setup and Wiring
Carefully follow the wiring diagram below to connect the module to your charger, battery, and load. Ensure all connections are secure and correct polarity is observed.
5.1 Connection Points
- IN+ / IN-: Connect your charger's positive and negative outputs here.
- BT+ / BT-: Connect your battery (rechargeable battery) positive and negative terminals here.
- OUT+ / OUT-: Connect your load's positive and negative inputs here.
5.2 Controls and Indicators
- UP Button: Used for navigation or increasing values.
- DOWN Button: Used for navigation or decreasing values.
- SET Key: Used to enter settings or confirm selections.
- STOP Button: Used for emergency stop or mode switching.
- Buzzer: Provides audible alerts.
- Serial Port Communication Interface: For advanced communication (e.g., Modbus protocol).
- 10A Charging Relay Switch: Controls the charging circuit.
- 10A Discharge Relay Switch: Controls the discharging circuit.
6. Operating Modes
The module supports various operating modes for comprehensive battery management.
6.1 Charging Mode
- When the module enters the charging state, the charging relay is activated.
- If the charging circuit is closed, the charging icon on the display will flash, indicating the battery's capacity.
- The display dynamically shows the charging status.
- Force switch to discharge mode: Briefly press the SET button.
- Force switch to charging mode: Long press the STOP button.
6.2 Discharge Mode
- When the module enters the discharge state, the discharge relay is activated.
- If the discharging circuit is closed, the discharge icon on the display will flash, and the battery capacity will be shown.
- The display dynamically shows the discharge status.
- Force switch to charging mode: Briefly press the SET button.
- Force switch to discharge mode: Long press the STOP button.
6.3 UPS Uninterruptible Power Supply Mode
- In UPS mode, both the charging relay and discharging relay operate simultaneously.
- When power is supplied, the module will route power to the battery and simultaneously supply power to the load.
- When the battery is fully charged, it will continue to be charged, but the electrical relay will not disconnect.
- If the charger is powered off, the battery will automatically supply power to the load until the battery is exhausted.
- When the charger is powered on again, it will automatically charge the battery and supply power to the load.
- Important Note: In UPS mode, the output power of the charger must be greater than the combined power required for charging the battery and powering the load.
- The simultaneous flashing of both charging and discharging icons indicates that the module is operating in UPS mode.
- Current Description in UPS Mode:
- When the charger charges the battery and supplies power to the load, the displayed current represents the charging current for the battery.
- If the charger is disconnected or malfunctions, the charging icon will rapidly flash to indicate a charging issue.
- If an electrical appliance malfunctions, the battery will automatically supply power to the load, and the displayed current will represent the discharge current.
- How to turn on/off UPS mode: Long press the SET button to enter the settings menu. If the 'FUC' parameter is set to 'UPS', UPS mode is activated. Set it to any other value to turn off UPS mode.
- Emergency Stop: Briefly press the STOP button for an emergency stop.
7. Maintenance
- Keep the module clean and free from dust and moisture.
- Ensure proper ventilation around the module to prevent overheating.
- Regularly check all wiring connections for tightness and signs of wear or corrosion.
- Avoid exposing the module to extreme temperatures or direct sunlight for prolonged periods.
- Do not attempt to disassemble the module; refer to qualified personnel for repairs.
8. Troubleshooting
- Module not powering on: Check input voltage and polarity. Ensure connections to IN+ and IN- are correct.
- Battery not charging/discharging: Verify battery connections (BT+/BT-), charger output, and load input (OUT+/OUT-). Check if the correct operating mode is selected.
- Incorrect readings on display: Ensure all connections are secure. If issues persist, the module may require recalibration or service.
- Overheat protection triggered: Ensure adequate ventilation. Reduce load if necessary.
- Unexpected behavior: Review the operating mode settings, especially for UPS mode, and ensure all parameters are configured as intended.
9. User Tips
- Always double-check wiring before applying power to prevent damage to the module or connected components.
- For critical applications, consider testing the module's functionality with a non-critical load first.
- Familiarize yourself with the different operating modes and their specific requirements to optimize battery performance and protection.
10. Warranty and Support
For any issues or technical support, please contact the seller or manufacturer. Keep your purchase records for warranty claims. The manufacturer warrants this product against defects in materials and workmanship under normal use for a specified period from the date of purchase. This warranty does not cover damage caused by misuse, accident, modification, or unauthorized repair.
