🔧 DIY 50,000mAh Power Bank – Build Your Own Super Backup!

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🔧 DIY 50,000mAh Power Bank – Build Your Own Super Backup!

Tired of low battery warnings? Build your own DIY 50,000mAh Power Bank and enjoy massive backup power anytime, anywhere!

⚙️ What You Need:

  • 10x 18650 Li-ion cells (preferably 5,000mAh each)

  • Battery holder or case

  • BMS (Battery Management System) for safety

  • USB charging module (preferably with fast charging)

  • Heat shrink wrap or enclosure box

  • Soldering kit and wires

🔋 Benefits:

  • High capacity: Charge your phone 10–12 times

  • Cost-effective compared to branded options

  • Custom ports: Add USB, Type-C, or even wireless charging

  • Learn battery safety and electronics basics

⚠️ Safety Tip: Always use a BMS and quality batteries to avoid overcharging, heating, or explosion risks.

Build it, test it, and enjoy your DIY power boost!

How to attach & Connect Cells with each other 



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