How to make a 12V // 40 A powerfull Li-ion battery pack 🔋 || DIY Li-ion battery pack
In this video I will show how we can build our lithium battery pack for an old ups. It double up the backup time. I used my Homemade Spot welding machine to weld all the batteries together.
Material Used-
1. 18650 Li-ion cell 2200mah (21nos.)
2. 3cell BMS Circuit
3. Nickel Strip and Spot Welder
4. Insulation Sheet
5. Silicon Wire 12AWG
6. Glue
Thanks for watching this video.
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