Скачать или смотреть Mi 20000mAh Power Bank Battery Replacement 🔋 | 18650 Cell Upgrade & Repair Guide

Mi 20000mAh Power Bank not holding charge? In this video, I’ll show you how I replaced the dead internal battery with brand new 18650 rechargeable cells. 🔋⚡

👉 What you’ll learn in this video:
How to open and disassemble the Mi 20000mAh Power Bank
Identify the original Lithium Polymer battery pack
Safely replace with 18650 cells
Connect BMS/protection circuit for safety
Test output, charging speed & backup time
Pros & cons of using 18650 cells instead of stock Li-Polymer

⚠️ Important Note:
Battery replacement involves risk of short circuit, fire or explosion if done incorrectly. Attempt only if you have experience with electronics and always take proper safety precautions. Do at your own risk.

🔧 Tools & Components Used:
18650 rechargeable cells
Battery Management System (BMS) / protection board
Soldering iron & wires
Multimeter for testing

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