1. Product Overview
The Waveshare Solar Power Manager Module (D) is a compact and efficient solar charge controller designed for various low-power applications. It facilitates the charging of 3.7V rechargeable Li-ion batteries using either a 6V-24V solar panel or a Type-C power adapter. The module provides a stable 5V/3A regulated output, making it suitable for powering microcontrollers, development boards, and IoT devices.
Equipped with MPPT (Maximum Power Point Tracking) functionality, it optimizes the power extraction from solar panels under varying light conditions. It also integrates multiple protection circuits to ensure safe and reliable operation, including safeguards against over-charge, over-discharge, overheat, and over-current conditions.
Image: Waveshare Solar Power Manager Module (D) highlighting its compact design and various connection points.
2. Package Contents
Please verify that all items listed below are included in your package:
- 1x Solar Power Manager (D) module
- 1x Screws pack
Image: Contents of the package, including the Solar Power Manager (D) module and mounting screws.
3. Key Features
- MPPT Function: Supports Maximum Power Point Tracking to maximize solar panel efficiency.
- Dual Charging Input: Compatible with 6V~24V solar panels and Type-C power adapters for battery charging.
- Self-Adaptive Input Voltage: Automatically adjusts to input voltage from 6V~24V solar panels via DC-002 jack or screw terminal.
- Input Anti-Reverse Protection: Prevents damage from incorrect solar panel input polarity.
- Regulated Output: Provides a stable 5V/3A output for connected devices.
- Multi LED Indicators: Visual feedback for monitoring solar panel and battery status.
- Comprehensive Protection Circuits: Includes safeguards against over-charge, over-discharge, overheat, and over-current to ensure stable and safe operation.
4. Setup and Connections
Before connecting any components, ensure the module is placed on a stable, non-conductive surface. Refer to the diagram below for connection points.
Image: Detailed component layout and connection points of the Solar Power Manager (D) module.
4.1 Component Identification
- Solar panel charging input: Connect your 6V-24V solar panel here via DC-002 jack or screw terminal.
- Type-C charging input: Connect a 5V power adapter via Type-C connector for charging or use as a 5V output for external devices.
- Power output: 5V/3A output via screw terminal for powering external devices.
- BATT interfaces: Connect a 3.7V rechargeable Li-ion battery via screw terminal or PH2.0 4P connector.
- SW6106: USB power management chip for USB charging and 5V/3A boost output.
- CN3791: Solar power management chip for solar panel charging and buck input.
- XB8886A: Li-ion battery over-charge / over-discharge protection chip.
- BATT capacity indicators: LEDs indicating battery charge level.
- Solar panel charging indicators: LEDs indicating solar charging status.
- Anti-reverse MOS tube: Prevents reverse battery connection damage.
4.2 Connection Procedure
- Connect Battery: Connect a 3.7V rechargeable Li-ion battery to the BATT interfaces (4). Ensure correct polarity. The module does not include a battery holder, so batteries must be purchased separately.
- Connect Solar Panel (Optional): Connect a 6V-24V solar panel to the Solar panel charging input (1). The module supports self-adaptive input voltage.
- Connect Type-C Power Adapter (Optional): Alternatively, or in addition to solar, connect a 5V Type-C power adapter to the Type-C charging input (2) for battery charging.
- Connect Load: Connect your 5V device to the Power output (3) screw terminal. Ensure the device's current draw does not exceed 3A.
Important: Always ensure correct polarity for all connections to prevent damage to the module and connected devices.
5. Operating Instructions
5.1 Charging the Battery
- Solar Charging: When a solar panel is connected and exposed to sufficient sunlight, the module will automatically begin charging the connected 3.7V Li-ion battery. The "Charge" LED (part of Solar panel charging indicators, 9) will illuminate. Once the battery is fully charged, the "Done" LED will light up.
- Type-C Charging: Connect a 5V Type-C power adapter to the Type-C input (2). The module will charge the battery. The BATT capacity indicators (8) will show the charging progress.
5.2 Powering External Devices
- The module provides a regulated 5V/3A output via the screw terminal (3). Connect your 5V device to this output.
- The Type-C port (2) can also function as a 5V output for external devices when not used for charging.
5.3 LED Indicators
- BATT Capacity Indicators (8): These LEDs light up when the battery is charging or under load. They will turn off approximately 30 seconds after the load is removed.
- Solar Panel Charging Indicators (9):
- Charge: Illuminates when the solar panel is actively charging the battery.
- Done: Illuminates when the battery is fully charged by the solar panel.
6. Maintenance
- Cleaning: Keep the module clean and free from dust and debris. Use a soft, dry cloth for cleaning. Avoid using liquids or abrasive cleaners.
- Connections: Periodically check all screw terminal connections to ensure they are secure. Loose connections can lead to poor performance or damage.
- Environment: Operate the module within its specified temperature range. Avoid exposure to extreme heat, cold, or high humidity.
- Battery Health: If using rechargeable batteries, follow the manufacturer's guidelines for battery care to maximize lifespan.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No power output (5V/3A) |
|
|
| Battery not charging |
|
|
| LED indicators not working |
|
|
8. Specifications
| Feature | Specification |
|---|---|
| Solar Input Voltage | 6V ~ 24V (self-adaptive) |
| Type-C Input Voltage | 5V |
| Regulated Output | 5V / 3A |
| Battery Type | 3.7V rechargeable Li-ion battery (not included) |
| Recharging Cutoff Voltage | 4.2V ± 1% |
| Over Discharging Protection Voltage | 3.0V ± 1% |
| Special Features | MPPT function, self-adaptive input voltage, multiple protection circuits |
| Dimensions (L x W x H) | 45.0 mm x 40.0 mm x 10.1 mm |
| Quiescent Current (Max) | <30mA |
Note: Specifications are subject to change without prior notice.
9. Warranty Information
Waveshare products are typically covered by a limited warranty. For detailed information regarding the warranty period, terms, and conditions applicable to your Solar Power Manager Module (D), please refer to the official Waveshare website or contact the retailer from whom you purchased the product. Keep your proof of purchase for warranty claims.
10. Support
For technical assistance, product documentation, or further inquiries, please visit the official Waveshare support resources:
- Waveshare Official Website: www.waveshare.com (Check for product-specific documentation, forums, and contact information.)
- Retailer Support: Contact the vendor or online store where you purchased the module for direct support.
When contacting support, please have your product model (Solar Power Manager (D)) and any relevant purchase details ready.
