Solar Power Bank Kit

This kit serves one of our pillars: Energy — technology in the service of nature.

Build a power bank that charges itself from the sun. A solar panel fills a rechargeable battery through a smart charging board, and a USB output powers your phone — clean energy you made yourself. The day the sun charges your phone is the day energy finally clicks.

What's inside the kit?

• Solar panel 2 Watt - 5v/400mA — Solar panel — generates the power
• TP4056 Lithium 18650 Battery Charger With DC-DC Step Up Voltage Converter Module (SKU#HW-357) — Smart charge + USB-boost board
• Rechargeable18650 Li-ion Battery 3.7v (Recycled- original) — Stores the energy
• Battery Holder 2x18650 — Holds the battery
• BB-J140 Connecting Jumper Wires for Breadboard (140 Wire) — Connections

How the idea works

Every part in the kit has a job. Assembled in the right order they stop being loose parts and become a working system — one you build yourself, understand at every step, and see the result of with your own eyes. The included build guide walks you from zero to running.

Your journey: from kit to competition

• Build — assemble the kit and get it running.
• Understand — learn why each part is there and how it works.
• Improve — modify it, add a sensor, tune it, try your own idea.
• Make a project — turn the experiment into a project that solves a real environmental problem.
• Compete — enter your project into local and international competitions.

A good fit for tracks such as:

• Energy / الطاقة

What you'll learn

• How solar panels and batteries store energy
• How a charge-and-boost board manages power safely
• Converting 3.7V battery power to 5V USB
• Designing your own portable clean-energy device

Extend & innovate

Add more battery cells for bigger capacity, add a second panel for faster charging, and build a weatherproof case to take it camping. Measure how many phone charges one sunny day gives you.