📝 Overview
The CN3791 MPPT Solar Charger Module is a solar charging controller designed to charge lithium-ion batteries using solar panel power. It uses Maximum Power Point Tracking (MPPT) technology to optimize energy extraction from the solar panel, improving charging efficiency under varying sunlight conditions.
⚙️ Key Features
- Based on the CN3791 solar charging controller IC.
- MPPT technology for optimized solar energy harvesting.
- Designed for charging single-cell lithium-ion batteries.
- Supports constant-current and constant-voltage (CC/CV) charging.
- Compact design for solar-powered electronic projects.
- Suitable for small solar energy systems and battery-powered devices.
📦 Technical Specifications
Parameter| Value
Controller IC| CN3791
Product Type| MPPT Solar Charger Module
Solar Panel Input| Depends on module version
Battery Type| Lithium-ion / Lithium-polymer
Battery Configuration| Typically 1 cell (3.7V nominal, 4.2V charging)
Charging Method| MPPT, CC/CV
Battery Charging Voltage| Typically 4.2V
Output| Battery charging terminals
🛠️ Applications
- Solar-powered battery charging.
- Small solar energy projects.
- Portable solar-powered devices.
- DIY renewable energy systems.
- Electronics and educational projects.
📦 Package Includes
- 1 × CN3791 MPPT Solar Charger Module
Important: Although some listings describe this as a 12V solar charger, the CN3791 is generally used for single-cell lithium battery charging, not for charging a 12V battery. Confirm the exact module version and its supported solar-panel input voltage before connecting it.
