BUILD A LARGE LITHIUM BATTERY PACK

Only $2 for 5 pcs PCBs and Free SMT Assembly at JLCPCB& Get $54 for New Users: https://jlcpcb.com/cyt 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. Welding Machine video link- https://youtu.be/Hu_A3Hf-A4Y 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.