CN3791 6V 2A MPPT Solar Charge Controller

CN3791 6V 2A MPPT Solar Charge Controller

11,000 MMK

SKU Code

PM0015

Availability

Low Stock

Categories

  • Power Management

Description

<mark>The CN3791</mark> is the most common module for a 6V 2A MPPT solar charge controller. It is a compact, switch-mode DC-DC buck converter designed explicitly for Maximum Power Point Tracking (MPPT) of 6V to 12V solar panels and outputs a safe, regulated 2A current to charge a single-cell (3.7V) lithium-ion/LiPo battery.

🛠️ Key Specifications

  • Input Voltage: Designed to match nominal 6V solar panels.
  • Charging Current: Up to 2A max.
  • Battery Type: Single-string 3.7V Lithium-ion or Lithium Polymer (LiPo) batteries (4.2V full charge).
  • Efficiency: Features integrated trickle charging for deeply discharged batteries and soft-start functionality.
  • Protections: Built-in battery overvoltage protection.

⚙️ How to Wire and Use It

  1. Connections: The board usually has 2-pin PH2.0 or JST connectors. Connect your solar panel to the IN terminals and your lithium battery to the BAT terminals.
  2. Tracking: The CN3791 automatically tracks the maximum power point as sunlight intensity changes, extracting the highest possible wattage from the panel.
  3. LED Indicators: Most variations include onboard LEDs to display your charge status (e.g., Red for charging, Green for fully charged/standby).