Mini Power Bank – Small Size, Big Utility

A mini power bank is a compact and lightweight solution for charging devices on the go. It is easy to carry, quick to make, and perfect for learning basic electronics. This DIY project is ideal for beginners and everyday use.

Materials Needed

• 18650 lithium battery or Li-Po battery

• Mini power bank module

• USB output port

• Micro USB or Type-C input

• Small casing

• Connecting wires

Step 1: Battery Setup

Connect the battery to the power bank module, ensuring correct positive and negative terminals.

Step 2: Module Connection

Fix the USB output and charging input ports securely to the module.

Step 3: Assemble the Case

Place all components inside the mini casing and secure them properly.

Step 4: Testing

Charge the mini power bank fully, then test it by charging a mobile phone or USB device.

Final Words

A mini power bank is portable, practical, and easy to build. This project is great for DIY learners and a useful gadget for daily life.