---
product_id: 369080452
title: "DFROBOT 900mA MPPT Solar Panel Controller - Solar Power Manager Module for 5V Solar Panel - Support Solar and USB Charging"
brand: "dfrobot"
price: "€ 44.07"
currency: EUR
in_stock: true
reviews_count: 5
category: "Dfrobot"
url: https://www.desertcart.de/products/369080452-dfrobot-900ma-mppt-solar-panel-controller-solar-power-manager-module
store_origin: DE
region: Germany
---

# 900mA max charge current MPPT maximizes solar efficiency Comprehensive multi-layer protection DFROBOT 900mA MPPT Solar Panel Controller - Solar Power Manager Module for 5V Solar Panel - Support Solar and USB Charging

**Brand:** dfrobot
**Price:** € 44.07
**Availability:** ✅ In Stock

## Summary

> 🔆 Power smarter, live greener — never miss a watt!

## Quick Answers

- **What is this?** DFROBOT 900mA MPPT Solar Panel Controller - Solar Power Manager Module for 5V Solar Panel - Support Solar and USB Charging by dfrobot
- **How much does it cost?** € 44.07 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.de](https://www.desertcart.de/products/369080452-dfrobot-900ma-mppt-solar-panel-controller-solar-power-manager-module)

## Best For

- dfrobot enthusiasts

## Why This Product

- Trusted dfrobot brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Power On Demand:** 5V 1A regulated output with ON/OFF control powers your low-energy IoT and solar projects effortlessly 🔄
- • **Dual Charging Modes:** Seamlessly switch between solar and USB charging for ultimate flexibility 🔌
- • **Safe & Sound Battery Care:** Advanced overcharge, overdischarge, and overcurrent protection keeps your Li-ion battery healthy 🛡️
- • **Maximize Your Solar Harvest:** MPPT tech squeezes every drop of power from your 5V panel ⚡
- • **Built for Makers & Innovators:** Compact, durable design with thermal management and ESD protection—ready for your next breakthrough 🚀

## Overview

The DFROBOT 900mA MPPT Solar Panel Controller is a compact, high-efficiency solar power management module designed for 5V solar panels. Featuring Maximum Power Point Tracking (MPPT) technology, it optimizes solar energy harvesting and supports dual charging via solar or USB with up to 900mA current. It offers a regulated 5V 1A output with ON/OFF control, comprehensive battery and output protection, and is ideal for IoT, solar-powered robotics, and small solar lighting projects.

## Description

INTRODUCTIONThe DFRobot Solar Power Manager series are designed for IoT projects and renewable energy projects, providing safe and high-efficiency embedded solar power management modules for makers and application engineers. This Solar Power Manager (V1.1 Edition) is a small and easy-to-use 5V solar power management module.It features as MPPT (Maximum Power Point Tracking) function, maximizing the efficiency of the solar panel, suitable for various solar power projects.FEATURESConstant voltage MPPT algorithm, maximizing solar panel efficiencyDesigned for 5V solar panelDouble charging mode: solar/USB charger (900mA max charge current)5V ON/OFF controllable regulated power supply for low-power applicationsAll-round protection functionsUSB connector with ESD shellSPECIFICATIONSolar Power Management IC: CN3165Solar Input Voltage (SOLAR IN): 4.5V~6VBattery Input (BAT IN): 3.7V Single cell Li-polymer/Li-ion BatteryCharge Current(USB/SOLAR IN): 900mA Max trickle charging, constant current, constant voltage three phases chargingCharging Cutoff Voltage (USB/SOLAR IN): 4.2V±1%Regulated Power Supply: 5V 1ARegulated Power Supply Efficiency (3.7V BAT IN): 86%@50%LoadUSB/Solar Charge Efficiency: 73%@3.7V 900mA BAT INQuiescent Current: <1 mAOperation Temperature: -40℃～85℃Dimension: 33.0mm*63.0mmProtection Functions:BAT IN: over charge/over discharge/over current/reverse connection protection5V/USB OUT: short circuit/over current/over heat protectionSOLAR IN: reverse connection protectionSHIPPING LIST1 x Solar Power Manager 5V1 x 2.54mm Black Jumper4 x M3*10mm Nylon Pillar4 x M3*5mm Stainless Steel Screw1 x 14*14*7mm Black Aluminum Cooling Fin1 x 14*14*0.5mm Thermal Conductive Silicone Pad

Review: Worked well for what I needed. I used this for a solar project for my son. It has all the connections that you would need and is very well made. Good price for a good item.
Review: This was exactly what I was looking for but didn’t want to wait for shipping from AliExpress for a fraction of the price.

## Features

- Solar Power Manager 5V is a small power and high-efficiency solar power management module designed for 5V solar panel.It features as MPPT (Maximum Power Point Tracking) function, maximizing the efficiency of the solar panel.
- The module can provide up to 900mA charging current to 3.7V Li battery with USB charger or solar panel. The ON/OFF controllable DC-DC converters with 5V 1A output satisfies the needs of various solar power projects and low-power applications.
- The module also employs various protection functions for battery, solar panel and output, which greatly improves the stability and safety of your solar projects.
- AS Solar Power Manager 5v V1.1 (Newest Version), battery (BAT IN) overcurrent and overdischarge protection is added to improve battery safety. It can be use for 3.7 lipo battery no matter it is packed with protection circuits or not.
- APPLICATIONS: Smart solar environment monitor system; Solar powered robot; Small solar street lamp; Solar power bank.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07MML4YJV |
| Customer Reviews | 4.4 4.4 out of 5 stars (108) |
| Date First Available | 26 June 2019 |
| Item model number | DFR0559 |
| Manufacturer | DFROBOT |
| Material type | Stainless Steel |
| Package Dimensions | 8.9 x 6.5 x 2 cm; 68 g |
| Part number | DFR0559 |
| Power source type | Solar Powered |

## Product Details

- **Brand:** DFROBOT
- **Colour:** Black
- **Item weight:** 0.07 Kilograms
- **Material:** Stainless Steel
- **Voltage:** 5 Volts

## Images

![DFROBOT 900mA MPPT Solar Panel Controller - Solar Power Manager Module for 5V Solar Panel - Support Solar and USB Charging - Image 1](https://m.media-amazon.com/images/I/61mU5S0ROXL.jpg)

## Questions & Answers

**Q: if no power is going through the solar panel, can this be set to automatically turn on?  In other words does the 5v auto turn on when it gets dark?**
A: It automatically turns on when power is supplied from the panel. In the interim it draws from the battery.

**Q: How do i mount the cooling fin? is that what the 3m tape is for? and i it suppose to have direct contact?**
A: That is a good question. I didn't put on my unit and it is working fine.

**Q: what is the minimum voltage from solar panel needed? my location is partialy shaded so I get 5.5 in direct sunlight in morning and 3.5 in afternoon**
A: The minimum voltage required from the solar panel is 4.4-6V. In your case, you could connect a 3.7V Lipo battery at the BAT IN side. When the sunlight is not strong, the device can be powered by the lithium battery. When the sunlight is intense, the solar panel can power the device and also charge the lithium battery.

**Q: Open circuit voltage is 7.2V operating is 6 volts on my solar panels will this work with solar power manager 5 volt 6 volts max**
A: I had a little trouble with one of mine that had open circuit voltage above 6v. I opted for installing a step down circuit to drop it to 5v and it works like a champ.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by C***S on 30 January 2025*

Worked well for what I needed. I used this for a solar project for my son. It has all the connections that you would need and is very well made. Good price for a good item.

### ⭐⭐⭐ Review
*by A***R on 16 May 2023*

This was exactly what I was looking for but didn’t want to wait for shipping from AliExpress for a fraction of the price.

### ⭐⭐⭐⭐⭐ Review
*by S***S on 8 February 2025*

I use these to power solar Meshtastic LoRA Nodes. I have a 5v6w solar panel and 3 21700(4500mAh) cells in parallel. Output to the Meshtastic node. It has been up on my tower for 3 weeks and it has kept the batteries fully charged even during sub freezing Temps and multiple days of cloudy conditions. Very happy with the DFRobot controller. I have bought 6 of these now and would buy more.👍

## Frequently Bought Together

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**Shop now:** [https://www.desertcart.de/products/369080452-dfrobot-900ma-mppt-solar-panel-controller-solar-power-manager-module](https://www.desertcart.de/products/369080452-dfrobot-900ma-mppt-solar-panel-controller-solar-power-manager-module)

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*Product available on Desertcart Germany*
*Store origin: DE*
*Last updated: 2026-02-22*