(SPIDER Automation) CN3791 12V MPPT Solar Charger Module | 2A Single-Cell LiPo Photovoltaic Charging Board

SPIDER Automation CN3791 12V MPPT Solar Charger Module | 2A LiPo Photovoltaic Board

Description

SPIDER Automation CN3791 12V MPPT Solar Charger Module is a high-efficiency Maximum Power Point Tracking (MPPT) power management solution designed for single-cell LiPo (Lithium Polymer) rechargeable battery systems. Engineered to extract the highest possible energy yield from photovoltaic panels and solar arrays, this module ensures your solar setup operates at peak efficiency regardless of changing ambient light conditions.

At the core of the module is an integrated CN3791 power tracking battery charging circuit paired with a high-frequency switch-mode DC-DC converter. By maintaining an optimal voltage-current product output, it drives maximum power into the battery while supporting parallel load connections. Pre-installed with four 2-pin JST/PH2.0 connectors and built to withstand industrial temperature extremes ranging from -40°C to 85°C, it provides a reliable, plug-and-play solar harvesting solution for remote IoT sensors, field electronics, and portable power rigs.

Key Features

• • Integrated MPPT Control Circuit: Utilizes a dedicated CN3791 tracking algorithm to dynamically adjust operating points and extract peak photovoltaic power during light intensity fluctuations.
  • High-Frequency PWM Conversion: Operates on an efficient 300kHz switching frequency to ensure superior energy conversion efficiency and minimal thermal dissipation.
  • High-Current Charging Output: Delivers a robust maximum charging current of up to 2A for rapid and effective energy replenishment.
  • Single-Cell LiPo Architecture: Precision output voltage curves tailored exclusively for safe charging of 3.7V single-cell polymer lithium-ion batteries.
  • Parallel Load Support: Designed to allow system loads to be connected directly in parallel with the battery terminals for continuous operation.
  • Pre-Installed JST Connectivity: Features four factory-installed 2-pin JST/PH2.0 connectors for quick, secure, and error-free wiring of solar panels and batteries.
  • Industrial Temperature Resilience: Engineered to function reliably under extreme environmental conditions spanning from -40°C to +85°C.
  • Ultra-Compact Footprint: Space-saving lightweight PCB layout measuring only 45 × 20 × 9.5 mm for seamless integration into custom enclosures.

Benefits

• Maximum Solar Efficiency: Extract significantly more energy out of standard photovoltaic panels compared to traditional linear charging circuits.
• Plug-and-Play Simplicity: Simple deployment scheme allows users to instantly connect a solar panel on one side and a LiPo battery on the other.
• Field-Ready Durability: Rugged component selection guarantees dependable performance in outdoor, off-grid, and remote automation deployments.

Applications

• Remote IoT Sensor Nodes: Powers autonomous outdoor environmental monitors, agricultural data loggers, and weather tracking stations.
• Off-Grid Wildlife Camera Traps: Provides continuous, self-sustaining battery replenishment for remote security and scouting cameras.
• Portable Solar Power Banks: Ideal building block for custom DIY backup power packs, emergency chargers, and portable field gear.
• Robotics & Autonomous Rovers: Powers outdoor field robots and automated mobile platforms via integrated auxiliary solar panels.
• Distributed Renewable Energy Projects: Excellent educational and prototyping module for studying photovoltaic efficiency and MPPT power management.

Package Includes

• 1 x SPIDER Automation CN3791 12V MPPT Solar Charger Module
• 1 x Pair of wires with 2-pin JST connectors on both sides

Technical Specifications