How to replace a 12v UPS batteries with Lithium Batteries (LifePo4)

I made a successful DIY Lifepo4 12v 32650 batteries to replace the dead lead acid battery of my UPS. Enjoy the video!
Materials used:
Aliexpress:
32650 Batteries - https://ali.ski/JioCPx
Nickel Tab Strip Wire - https://ali.ski/WIVNa
Battery Holder - https://ali.ski/6Sk0t
4s BMS - https://ali.ski/GPV06T
Soldering Kit: https://ali.ski/U3kjZ
Amazon:
4s BMS: https://amzn.to/3h228od
32650 Batteries: https://amzn.to/34vveXY
Soldering Kit: https://amzn.to/3nD0YSj
Battery Holder: https://amzn.to/3pajUZ2