Name: CN3791 MPPT 3.7V 4.2V Lithium Battery Charging Module
Brand: Generic
SKU: SR-04-001
Availability: InStock

CN3791 MPPT 3.7V 4.2V Lithium Battery Charging Module is a high-efficiency charging module designed for single-cell lithium-ion or lithium-polymer batteries. It features Maximum Power Point Tracking (MPPT) technology, ensuring optimal charging efficiency from solar panels or other DC power sources. With a compact design and robust performance, it is ideal for portable devices, solar-powered systems, and DIY projects.

Key Features of CN3791 MPPT Lithium Battery Charging Module:

- MPPT Technology: Maximizes power extraction from solar panels.
- Wide Input Voltage Range: Supports 12V input.
- Precise Charging: Charges lithium batteries to 4.2V with high accuracy.
- Built-in Protection: Includes overcharge, over-discharge, and short-circuit protection.

Technical Specifications of CN3791 MPPT Lithium Battery Charging Module:

- Input Voltage: 12V
- Battery Voltage: 3.7V (nominal), 4.2V (fully charged)
- Charging Accuracy: ±1%
- Efficiency: Up to 95%
- Operating Temperature: -40°C to +85°C
- Protection Features: Overcharge, over-discharge, short-circuit, and reverse polarity protection

Mechanical Characteristics of CN3791 MPPT Lithium Battery Charging Module:

- Dimensions: 45mm x 20mm x 10mm
- Weight: Approximately 10 grams
- Material: FR4 PCB with heat sink
- Mounting: Through-hole or surface mount
- Color: Blue PCB with white silkscreen

Schematic Diagram and Pinout of CN3791 MPPT Lithium Battery Charging Module:

- Pinout:
  - VIN+: Positive input voltage 12V
  - VIN-: Negative input voltage (ground)
  - BAT+: Positive terminal for connecting the battery
  - BAT-: Negative terminal for connecting the battery
  - SOLAR+: Positive terminal for solar panel input
  - SOLAR-: Negative terminal for solar panel input
  - STAT: Charging status indicator (LED)
- Schematic Diagram: The CN3791 module connects to a solar panel or DC power source via VIN+/VIN- or SOLAR+/SOLAR-, with BAT+/BAT- connected to the lithium battery. The STAT pin indicates charging status.

Applications of CN3791 MPPT Lithium Battery Charging Module:

- Solar-Powered Systems: Charges lithium batteries from solar panels efficiently.
- Portable Devices: Ideal for powering portable electronics like cameras and drones.
- DIY Projects: Perfect for hobbyists building solar chargers or battery-powered systems.
- Backup Power Systems: Used in emergency power supplies and UPS systems.
- IoT Devices: Provides reliable charging for IoT devices with lithium batteries.

Equivalent Models of CN3791 MPPT Lithium Battery Charging Module:

- TP5100 Charging Module: A similar lithium battery charging module with dual-cell support.
- BQ24650 Charging Module: Alternative MPPT charging module for solar applications.