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Elejoy CN3791 12V MPPT Solar Charger Module

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Solar Charger Module for everyday users

The Elejoy CN3791 12V MPPT Solar Charger Module is a value-for-money solar charger module designed for everyday users. It features Output Voltage: 12 and Output Current (A): Variable.

₹687
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Total: ₹687
Buying tip: A smart budget buy — solid performance without breaking the bank.
Estimated delivery: 24 Aug7 Sept
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Quick Specs

Output Voltage: 12
Output Current (A): Variable
Charging Current: 2
Operating Voltage (VDC): 12
Operating Temperature (°C): -40 to 85
Switching frequency: 300

Ideal For

Charging smartphones and tabletsPowering accessoriesTravel use
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SKU: robu-890185Category: Solar Charger Module

About This Product

The Elejoy CN3791 12V MPPT Solar Charger Module is a value-for-money solar charger module designed for everyday users. It delivers reliable performance at an accessible price.

Key Specifications

  • Output Voltage: 12 — works with standard household power
  • Output Current (A): Variable
  • Charging Current: 2 —
  • Operating Voltage (VDC): 12 — works with standard household power
  • Operating Temperature (°C): -40 to 85
  • Switching frequency: 300 — smooth, flicker-free operation
  • Length (mm): 45
  • Width (mm): 20

Why Buy from Elecvora?

Elecvora sources this product directly, cutting out multiple middlemen. Every order includes free shipping, a 15-day return policy, and secure payment via Razorpay.

This is a maximum power point tracking (MPPT) solar charger for single-cell LiPo batteries. This MPPT solar charger provides you with the ability to get the most possible power out of your solar panel or other photovoltaic device and into a rechargeable LiPo battery. Set-up is easy as well, just plug your solar panel into one side of the solar charger and your battery into the other and you are good to start charging! Solar maximum power point tracking (MPPT) is to ensure that the light intensity change, photovoltaic cells output maximum power, to make full use of solar energy. In general, need to use a switch-mode DC-DC converter to realize the MPPT function, keep the output voltage, and charging current product maximize (output).

The output of the Solar Charger is intended to charge a single polymer lithium-ion cell. The load should be connected in parallel with the battery. Each Solar Charger comes equipped with a CN3791 power tracking battery charging circuit and pre-installed four 2-pin JST/PH2.0 connectors.

Features:

  1. Maximum Power Point Tracking (MPPT) Solar Charger Module
  2. 2-Pin JST Connectors for Solar Panel and Battery Connection
  3. PWM Switching Frequency of 300KHz
  4. Maximum Charging Current of 2A

Package Includes:

1 x Elejoy  CN3791 12V MPPT Solar Charger Module 1 x Pair of wires with 2-pin JST connector on both sides;

Setup Guide

1
Identify the pins
Locate VCC (power), GND (ground), and data pins (SDA/SCL for I2C, MOSI/MISO for SPI, or TX/RX for UART). Refer to the pinout diagram on the product page.
2
Wire to your microcontroller
Connect VCC to 3.3V or 5V (check the module spec), GND to GND, and data pins to the appropriate GPIO pins on your Arduino or Raspberry Pi.
3
Install libraries
In Arduino IDE, go to Sketch → Include Library → Manage Libraries and search for the sensor library. Install the recommended version.
4
Upload example sketch
Open File → Examples → [library name] → Basic Example. Upload to your board and open Serial Monitor to view output.
5
Calibrate if needed
Some sensors (temperature, humidity, distance) may need a short warm-up period or calibration. Run the calibration sketch if provided.