Project Idea
Build an eco-friendly charging system using solar energy to charge rechargeable batteries. This project uses a solar panel to convert sunlight into electrical energy, which is then regulated and used to safely charge batteries like 18650 Li-Ion cells. It’s ideal for outdoor use, emergency preparedness, or learning renewable energy principles in a practical, hands-on way.
Project Description
This project is a portable solar-powered battery charger designed to harness sunlight for charging small rechargeable batteries. A solar panel provides DC power, which is regulated using a charging controller module like TP4056. The system includes a battery holder to accommodate batteries, a blocking diode to prevent backflow, and an LED indicator for charging status. It’s a compact, low-cost solution that introduces solar power basics while promoting sustainability. The charger is suitable for small gadgets, LED lights, and other low-power applications.
Components List
Solar Panel
TP4056 Charging Module
18650 Lithium-Ion Battery
Battery Holder
Blocking Diode
LED
Switch
Connecting Wires
Breadboard
Features
Solar Energy Powered
Charges 18650
Built-In Overcharge/Overdischarge Protection
Compact and Portable Design
LED Charging Status Indicator
Educational Tool for Learning Solar Power Principles
Project Applications
- Emergency Battery Backup: Charge batteries during power outages using only sunlight.
- Outdoor & Camping Use: Keep flashlights, radios, or small gadgets powered in remote locations.
- Sustainable DIY Projects:
- Promote renewable energy usage in hobby electronics.
- Student Learning Kits: Excellent for teaching solar energy, circuits, and charging systems.
- Solar Garden Lighting: Use as the power source for nighttime lighting projects.
- Rural or Off-Grid Solutions: Useful where electricity is limited or unreliable.
Shipping Dimensions
- Length: 12 cm
- Width: 10 cm
- Height: 5 cm
Weight: 300 grams
Shipping weight: 1kg
📦 Project Includes:
Fully assembled and tested circuit
Circuit diagram
Source code
(For DIY KITs - only the components will be provided)
Project Types:
- DIY KIT(Do IT YourSelf KIT) - We are providing only components in this kit for this project
- DIY KIT with Code & Circuit Connections - Along with the components, you will get the Code and the Circuit Connections file to help you build the project easily.
- Readymade Breadboard - We are providing fully assembled, tested and ready-made project using plug-n-play jumper wires and breadboard with all the other components, code & circuit diagram.
- Readymade Soldered - We are providing fully assembled, tested and ready-made project soldered on a PCB with all the other components, code & circuit diagram.
Notes -
All the products are made by LearnElectronics India and not for re-sale.
These project is a prototype project to show/present/explain and work like to real life product. It is not a product, if you need a ready-made product then reach out to us here.
