“How to Build a Mobile Phone Charger Using Solar Power – Easy DIY Project”

🔋 How to Build a Mobile Phone Charger Using Solar Power – Easy DIY Project

Are you someone who loves electronics and also wants to earn from your skills? In this blog, I’ll show you how to make a DIY solar mobile charger that’s not only a cool project but can also be sold for profit!

📦 What You Need:

  • Small Solar Panel (6V, 1W) – ₹100 to ₹150

  • Charging Module (TP4056) – ₹50

  • 18650 Lithium Battery – ₹100

  • Diode (1N4007) – ₹5

  • Micro USB Cable – ₹10

  • Soldering Kit & Wires – (optional if you're reusing components)

  • Small plastic case or box – ₹20 to ₹50



🛠️ Steps to Build:

  1. Connect the Solar Panel to the TP4056 module's input (IN+ and IN−).

  2. Attach the Lithium Battery to B+ and B− terminals of the module.

  3. Use a Diode between the solar panel and module to avoid reverse current.

  4. Connect USB Output Cable to OUT+ and OUT− for charging phones.

  5. Place everything inside a box and test with sunlight ☀️.

💡 How It Works:

The solar panel charges the battery via the TP4056 module. The battery then powers your device through the USB cable — just like a power bank!

💰 Profit Potential:

  • Total cost per unit: ₹250 – ₹300

  • Sell on Instagram, WhatsApp, or at local school science fairs for ₹500–₹700

  • Great for areas with power cuts or for eco-conscious customers.

💡 Tips for Selling:

  • Post project videos or tutorials on YouTube/Instagram.

  • Add your own label: CircuitSurfer Chargers

  • Offer custom designs or packaging.


💡 Tips for Selling:

  • Post project videos or tutorials on YouTube/Instagram.

  • Add your own label: CircuitSurfer Chargers

  • Offer custom designs or packaging.

📚 Conclusion:

Electronics isn’t just about learning — it’s about creating and earning! This solar charger project is the first step toward turning your hobby into a business. Stay tuned for more awesome ideas from CircuitSurfer! 🌐⚡


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