--- 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: "FREE" currency: EUR in_stock: false category: "Dfrobot" url: https://www.desertcart.at/products/369080452-dfrobot-900ma-mppt-solar-panel-controller-solar-power-manager-module store_origin: AT region: Austria --- # 900mA max charge current MPPT tech for max solar efficiency Multi-layer battery & output protection DFROBOT 900mA MPPT Solar Panel Controller - Solar Power Manager Module for 5V Solar Panel - Support Solar and USB Charging **Brand:** dfrobot **Price:** FREE **Availability:** ❌ Out of Stock ## Summary > 🔆 Power your future sustainably with smart solar mastery! ## 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?** FREE with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.at](https://www.desertcart.at/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 - • **Compact Yet Mighty:** Slim 33x63mm footprint with premium thermal management ensures efficient, quiet operation anywhere. - • **Dual Charging Flexibility:** Seamlessly switch between solar and USB charging with up to 900mA current for rapid, reliable power. - • **Plug & Play Power Control:** 5V regulated output with ON/OFF control perfectly tailored for low-power IoT and solar projects. - • **Maximize Your Solar Harvest:** Advanced MPPT algorithm squeezes every drop of power from your 5V solar panel. - • **Safe & Stable Power Delivery:** Robust protections guard against overcharge, overdischarge, short circuits, and reverse polarity—keeping your battery and devices safe. ## Overview The DFROBOT 900mA MPPT Solar Power Manager is a compact, high-efficiency module designed for 5V solar panels and 3.7V Li-ion batteries. Featuring Maximum Power Point Tracking (MPPT) technology, it maximizes solar energy harvest while providing dual charging modes (solar and USB) with up to 900mA current. Its integrated multi-layer protection system ensures battery safety and stable 5V regulated output at 1A, ideal for IoT devices, solar-powered robots, 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 ## 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 | | Brand Name | DFROBOT | | Color | Black | | Customer Reviews | 4.4 4.4 out of 5 stars (119) | | Item Weight | 0.07 Kilograms | | Manufacturer | DFROBOT | | Material Type | Stainless Steel | | Model | DFR0559 | | Number of Items | 1 | | Number of Packs | 1 | | Part Number | DFR0559 | | Unit Count | 1 Count | | Voltage | 5 Volts | ## 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. ## Frequently Bought Together - 900mA MPPT Solar Panel Controller - Solar Power Manager Module for 5V Solar Panel - Support Solar and USB Charging - FellDen Micro Solar Panels with Wire, 5PCS 5V 200mA Photovoltaic Solar Cells Kit 110mmx60mm / 4.33''x 2.36'' - RAKwireless WisBlock Meshtastic Starter Kit US915 Base RAK19007 + Core RAK4631 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.at/products/369080452-dfrobot-900ma-mppt-solar-panel-controller-solar-power-manager-module](https://www.desertcart.at/products/369080452-dfrobot-900ma-mppt-solar-panel-controller-solar-power-manager-module) --- *Product available on Desertcart Austria* *Store origin: AT* *Last updated: 2026-11-11*