CN3791 6V MPPT solar charger module with multiple connectors and red and black wiring cables

CN3791 6V MPPT Solar Charger Module

SKU NA641

$5.99 USD Shipping & tax calculated at checkout
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CN3791 6V MPPT solar charger module for efficient battery charging and power management from small solar panels, ideal for IoT, remote sensors, garden lights, Arduino, ESP32 and solar prototyping.

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Overview

Product Overview

CN3791 6V MPPT solar charger module is a solar battery charging and power-management board that uses the CN3791 controller to draw energy efficiently from a 6V solar panel. By applying maximum power point tracking (MPPT), it helps improve charging performance under changing sunlight, making it useful for outdoor electronics, remote sensors, low-power IoT devices, garden lighting, and portable DIY power projects. This module is a practical choice for solar prototyping and energy-harvesting systems where stable charging from a small panel matters, and it fits well into Arduino, ESP32, and Raspberry Pi accessory builds that need dependable solar input.

Questions & answers

Frequently asked questions

Yes. It can be used in Arduino, ESP32, and Raspberry Pi accessory builds as part of the solar charging power system. It is not a data module, so the development board still needs an appropriate regulated power input.
The ShillehTek version is pre-soldered, so it is ready to wire into a project without adding headers first. You still need to connect a compatible solar panel, battery, and any required power regulation for your load.
This board is designed to draw input from a 6V solar panel and uses the CN3791 controller for MPPT charging. Always match the panel and battery connections to the board labeling and product documentation before powering it.
Yes. It is intended for remote sensors, low-power IoT devices, garden lighting, outdoor electronics, and portable DIY solar projects. MPPT helps improve charging performance when sunlight changes, but the project must still fit the available solar energy.
Check sunlight exposure, panel orientation, wiring polarity, and whether the solar panel is a 6V type intended for this module. Shade, weak indoor light, loose wiring, or an oversized load can make charging appear unstable.

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What's included

Features & Specs

CN3791 ControllerUses the CN3791 controller for solar battery charging and power management.

6V Solar InputDesigned to draw energy efficiently from a 6V solar panel.

MPPT ChargingApplies maximum power point tracking to improve charging under changing sunlight.

Stable Solar PowerHelps maintain more dependable charging from small solar panels in energy-harvesting systems.

Board CompatibilityWorks well in Arduino, ESP32, and Raspberry Pi accessory builds that need solar input.

Typical ApplicationsUseful for outdoor electronics, remote sensors, low-power IoT devices, garden lighting, and portable DIY power projects.

Reference

Documents

Datasheet - CN3791 Solar Charger

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