--- product_id: 739906829 title: "900mA MPPT Solar Panel Controller - Solar Power Manager Module for 5V Solar Panel - Support Solar Charging and USB Charging" brand: "dfrobot" price: "£0.45" currency: GBP in_stock: false url: https://www.desertcart.co.uk/products/739906829-900ma-mppt-solar-panel-controller-solar-power-manager-module-5v store_origin: GB region: United Kingdom --- # 900mA max charging current MPPT tech for max solar efficiency Multi-layer battery & output protection 900mA MPPT Solar Panel Controller - Solar Power Manager Module for 5V Solar Panel - Support Solar Charging and USB Charging **Brand:** dfrobot **Price:** £0.45 **Availability:** ❌ Out of Stock ## Summary > 🔆 Power your future sustainably with smart solar efficiency! ## Quick Answers - **What is this?** 900mA MPPT Solar Panel Controller - Solar Power Manager Module for 5V Solar Panel - Support Solar Charging and USB Charging by dfrobot - **How much does it cost?** £0.45 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/739906829-900ma-mppt-solar-panel-controller-solar-power-manager-module-5v) ## 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 - • **Dual Charging Modes:** Seamlessly switch between solar and USB charging with up to 900mA current for rapid, reliable power. - • **Robust Battery Safety:** Built-in overcharge, over-discharge, and overcurrent protections keep your 3.7V LiPo battery safe and sound. - • **Compact & Durable Design:** Lightweight, thermally managed module built to withstand -40℃ to 85℃ for all-weather reliability. - • **Stable 5V Output Control:** Controllable 5V/1A DC-DC converter powers your low-energy IoT and solar projects with precision. - • **Maximize Solar Power Output:** Advanced MPPT algorithm squeezes every drop of energy from your 5V solar panel. ## Overview The 900mA MPPT Solar Panel Controller by DFROBOT is a compact, high-efficiency solar power management module designed for 5V solar panels and 3.7V LiPo batteries. Featuring Maximum Power Point Tracking (MPPT) technology, it maximizes solar charging efficiency up to 900mA, supports dual solar/USB charging modes, and offers comprehensive battery and output protections. Its controllable 5V/1A output and rugged design make it ideal for IoT, solar robotics, and low-power renewable energy projects. ## Description Introduction: The DFRobot Solar Power Manager Series is designed for IoT projects and renewable energy projects, providing manufacturers and application engineers with safe, efficient embedded solar power management modules. This Solar Power Manager (V1.1 Edition) is a small, easy-to-use 5V solar power management module. It functions as MPPT (power point tracking) function to maximize solar panel efficiency, suitable for various solar power projects. Features: Constant voltage MPPT algorithm, maximizes solar panel efficiency Designed for 5V solar panels. Double charging mode: Solar/USB charger (max charging current 900mA) 5V ON/OFF Controllable Stabilized Power Supply For low power applications All-around protection USB connector with ESD shell Specifications: Solar Power Management IC: CN3165 Solar Input Voltage (Solar Input): 4.5V - 6V Battery Input (BAT IN): 3.7V Single Cell Li-Polymer/Lithium-Ion Battery Charging current (USB/Solar input): 900 mA maximum trickle charging, constant current, 3 phase charging Charging cut-off voltage (USB/Solar input): 4.2V ± 1% Stabilized power supply: 5 V 1 A. Stabilized Power Efficiency (3.7V Bat IN): 86% @ 50% load USB/Solar Charging Efficiency: 73% @ 3.7V 900mA BAT IN Static current: <1mA Operating Temperature: -40℃~85℃ Dimension: 33.0mm*63.0mm PROTECTION: Bat Input: Overcharge/Overdischarge/Overcurrent/Reverse connection protection 5V/USB output: short circuit/overcurrent/overheating protection. Solar In: Reverse connection protection Shipping List 1 x Solar Power Manager 5V 1 x 2.54mm Black Jumper 4 x M3x10mm Nylon Pillars 4 x M3 x 5mm Stainless Steel Screws 1 x 14 x 7mm Black Aluminum Cooling Fin 1 x 14 x 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 panels. Acts as MPPT (maximum power point tracking) function to maximize solar panel efficiency - This module can provide up to 900mA charging current to 3.7V Li battery with a USB charger or solar panel. 5V 1A output ON/OFF controllable DC-DC converter meets the needs of various solar power projects and low power applications - The module also adopts various protection protection protection for batteries, solar panels and outputs, which greatly improve the stability and safety of your solar project - AS Solar Power Manager 5v V1.1 (Newest Version), battery (BAT IN) overcurrent and over-discharge protection added to improve battery safety. Works with 3.7 LiPo batteries with or without protective circuits - Applications: Smart solar environment monitor system, solar robot, small solar street light, solar power bank ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07MML4YJV | | Amazon Bestseller | #723,725 in DIY, Tools & Garden ( See Top 100 in DIY, Tools & Garden ) #1,932 in Solar Power Generation Equipment & Components | | Brand Name | DFROBOT | | Color | Brown|Green|Black|Yellow | | Customer Reviews | 4.5 4.5 out of 5 stars (111) | | Display Type | Software | | Item Weight | 0.07 Kilograms | | Manufacturer | DFROBOT | | Material Type | Aluminum | | Model | DFR0559 | | Part Number | DFR0559 | | Unit Count | 1.0 Count | | Voltage | 5 Volts | ## Product Details - **Brand:** DFROBOT - **Color:** Brown|Green|Black|Yellow - **Item Weight:** 0.07 Kilograms - **Material:** Aluminum - **Voltage:** 5 Volts ## Images ![900mA MPPT Solar Panel Controller - Solar Power Manager Module for 5V Solar Panel - Support Solar Charging and USB Charging - Image 1](https://m.media-amazon.com/images/I/61mU5S0ROXL.jpg) ![900mA MPPT Solar Panel Controller - Solar Power Manager Module for 5V Solar Panel - Support Solar Charging and USB Charging - Image 2](https://m.media-amazon.com/images/I/61ZG4Wk6nxL.jpg) ![900mA MPPT Solar Panel Controller - Solar Power Manager Module for 5V Solar Panel - Support Solar Charging and USB Charging - Image 3](https://m.media-amazon.com/images/I/61Rh5l27IPL.jpg) ![900mA MPPT Solar Panel Controller - Solar Power Manager Module for 5V Solar Panel - Support Solar Charging and USB Charging - Image 4](https://m.media-amazon.com/images/I/61K5vXCjHvL.jpg) ![900mA MPPT Solar Panel Controller - Solar Power Manager Module for 5V Solar Panel - Support Solar Charging and USB Charging - Image 5](https://m.media-amazon.com/images/I/61aV108+1OL.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.co.uk/products/739906829-900ma-mppt-solar-panel-controller-solar-power-manager-module-5v](https://www.desertcart.co.uk/products/739906829-900ma-mppt-solar-panel-controller-solar-power-manager-module-5v) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-16*