Battery disassembly repair fix 10S 36V 18650 Lithium ion old scooter battery pack

Lithium ion old scooter Battery disassembly and repair 36V(42V) 7.5Ah with BMS 10S 3P. Part 1: Remove the case Part 2: Remove the BMS module Part 3: Remove nickel strip Part 4: Quick test of the voltage of the 18650 cells Part 5: Clean the surface of the lithium ion cells with grinder