1. Introduction
This manual provides essential information for the safe and efficient operation of your Walfront Self Adaption MPPT Solar Charging Controller. This device is designed to manage power flow from your solar panels to your battery system, ensuring optimal charging and protection. It features self-adaptive voltage recognition, Bluetooth connectivity for mobile app monitoring, and dual USB outputs.
Key Features:
- Bluetooth Connection: Allows mobile app data viewing and settings adjustment with 7-day cloud data storage.
- Wide Compatibility: Supports 12V, 24V, 36V, 48V, and 60V battery systems.
- Dual USB Output: Provides 5V 2A maximum output for charging external devices.
- Data Storage: Built-in microcontroller stores user-set parameters, retaining them even if battery power is lost.
- Functional LCD Screen: Displays status and data clearly, enabling mode switching and parameter configuration.
- Multiple Protection: Includes overcurrent, short circuit, reverse connection, and open circuit protection with automatic recovery.
2. Safety Information
Please read all safety instructions carefully before installation and operation. Failure to follow these instructions may result in electric shock, fire, or serious injury.
- Ensure all connections are tight and correct to avoid excessive voltage drop and overheating.
- Install the controller in a well-ventilated area, away from flammable materials and moisture.
- Do not attempt to disassemble or repair the controller yourself. Contact qualified personnel for service.
- Always disconnect the solar panel and battery power before installing or adjusting the controller.
- Use appropriate circuit breakers or fuses for all connections to prevent damage from overcurrent.
- Keep children away from the solar charging system.
3. Package Contents
Verify that all items are present in the package:
- 1 x MPPT Solar Charging Controller (60A)
- 1 x User Manual
4. Product Overview
Familiarize yourself with the components and layout of the solar charging controller.

Figure 4.1: Front view of the Walfront MPPT Solar Charging Controller, showing the LCD screen, control buttons, and dual USB ports.

Figure 4.2: Side view of the Walfront MPPT Solar Charging Controller with dimensions labeled (approx. 11.5cm x 8.4cm x 7.4cm).

Figure 4.3: Angled view of the Walfront MPPT Solar Charging Controller, highlighting the USB ports and control panel.
5. Specifications
| Parameter | Value |
|---|---|
| System Voltage | 12V / 24V / 36V / 48V / 60V (Self-Adaption) |
| Maximum Photovoltaic Voltage (12V/24V System) | 18V Solar Panel for 12V Battery, 36V Solar Panel for 24V Battery |
| Maximum Photovoltaic Voltage (36V/48V System) | 54V Solar Panel for 36V Battery, 72V Solar Panel for 48V Battery |
| Maximum Photovoltaic Voltage (60V System) | 90V Solar Panel for 60V Battery |
| USB Output | 5V 2A Maximum (Dual USB) |
| Connection | Bluetooth |
| Rated Charging Current | 60A |
| Rated Discharge Current | 25A |
| Item Weight | 6.5 ounces (approx. 184g) |
| Package Dimensions | 5.08 x 3.62 x 1.34 inches (approx. 12.9 x 9.2 x 3.4 cm) |
6. Setup and Installation
Follow these steps for proper installation of the solar charging controller. Ensure all power sources are disconnected before making any connections.
Connection Diagram:

Figure 6.1: Connection Diagram of Solar Power Generation System
- Connect the Battery: Connect the positive and negative poles of the battery to the controller as shown in the diagram. The controller will automatically detect the battery voltage. Ensure correct polarity; reverse connection can damage the controller.
- Connect the Load: Connect the positive and negative poles of the load (e.g., DC load lamp, inverter for AC load) to the controller as shown in the diagram. Be careful not to reverse them.
- Connect the Solar Panel: Connect the solar panel to the controller as shown in the diagram. Ensure correct polarity.
Important: Always connect the battery first, then the load, and finally the solar panel. Disconnect in the reverse order: solar panel, then load, then battery.
7. Operating Instructions
The controller features an intuitive LCD display and control buttons for easy operation, along with Bluetooth connectivity for advanced monitoring.
7.1 LCD Display and Buttons
The LCD screen displays real-time system status, battery voltage, charging current, and other parameters. Use the buttons below the screen to navigate menus and adjust settings.
- Up/Down Buttons: Navigate through menu options or adjust parameter values.
- Set Button: Enter menu, confirm selection, or save settings.
- Power Button: Turn load output on/off (if applicable) or exit menu.
7.2 Bluetooth Connectivity and Mobile App
The controller supports Bluetooth for wireless monitoring and control via a dedicated mobile application. Search for the official Walfront solar controller app on your smartphone's app store.
- Download and install the mobile application.
- Ensure Bluetooth is enabled on your smartphone.
- Open the app and search for available devices. Select your controller from the list.
- Once connected, you can view real-time data, historical data (up to 7 days stored in the cloud), and adjust various charging parameters.
7.3 USB Output
The dual USB ports provide 5V 2A output for charging compatible electronic devices. Simply connect your device using a standard USB cable.
8. Maintenance
Regular maintenance ensures optimal performance and longevity of your solar charging controller.
- Cleaning: Periodically clean the controller's exterior with a dry, soft cloth. Do not use harsh chemicals or abrasive cleaners.
- Connections: Annually check all wiring connections for tightness and corrosion. Loose connections can cause overheating and power loss.
- Ventilation: Ensure the installation area remains well-ventilated and free from obstructions to prevent overheating.
- Inspection: Visually inspect the controller for any signs of damage, such as cracks, discoloration, or loose parts.
9. Troubleshooting
This section addresses common issues you might encounter with your solar charging controller.
| Problem | Possible Cause | Solution |
|---|---|---|
| Controller not charging battery | No solar input; reversed solar panel polarity; faulty solar panel; battery not connected or reversed polarity. | Check solar panel connections and polarity. Ensure sufficient sunlight. Verify battery connection and polarity. Test solar panel output. |
| Load not working | Load disconnected; reversed load polarity; battery voltage too low; load overcurrent protection activated. | Check load connections and polarity. Ensure battery is adequately charged. Reduce load or check for short circuits. |
| LCD display off or flickering | Battery voltage too low; loose connection; internal fault. | Check battery voltage and connections. If problem persists, contact support. |
| Bluetooth connection issues | Bluetooth off on phone; app not installed; controller out of range; interference. | Ensure phone Bluetooth is on. Reinstall app. Move closer to controller. Reduce other wireless interference. |
10. Warranty and Support
Walfront products are manufactured to high-quality standards. For warranty information, technical support, or service inquiries, please refer to the contact information provided with your purchase or visit the official Walfront website.
Please retain your proof of purchase for warranty claims.