I Built a 147,000mAh Power Bank From Reused Batteries (Part 1)

Описание: Part 1 of my custom huge-capacity portable power bank build, made entirely from reused / salvaged 18650 Li-ion cells.
The goal of this project is to turn old cells into a safe, usable, high-capacity power bank. That can fast 4 charge 4 phones at one time!

Every cell used in this build is individually checked and matched to ensure the final power bank is reliable, balanced, and portable, not just big on paper.

🔋 Power Bank Overview:

Total capacity: 147,000 mAh
Cell type: 18650 Li-ion LG Mj1
Built from reused / salvaged cells
Fully portable design
Focused on safety, longevity, and real-world usability

🛠️ Tools & Techniques Used

Spot welding
Voltmeter
Internal resistance measure tool
Welder
3d printer

⚠️ Important Note
This project is for educational purposes only.
Working with Li-ion batteries can be dangerous if done incorrectly — always use proper tools, protection, and knowledge.

💬 Want a battery like this built for your project? I’m taking custom orders! For your emoto, ebike I can help you out pick the right controller, motor and battery! Join my free Discord community for build logs, Q&A, and more battery content 👇 🔗 Discord: https://discord. gg/W4auFSF7kb

Hashtags (ignore):
#powerbank #diybattery #liion #liionbattery #18650 #reusedcells #salvagedcells #batterybuild #custombattery #batterytech #spotwelding #bms #celltesting #internalresistance #portablepower #engineering #maker #diytech #electronics #energy #recycling #batteryengineering #evcells #techbuild