Batteries are dangerous, working on one is difficult and require patience and skills! Do not disassemble, peel or remove one from the device unless you know what you're doing!
Specifications of the battery pack
Specifications
Title
Manufacturer
Samsung
Capacity
31.5Wh
Voltage
7.4V
Model number
P21GK3
BMS (Battery Management System)
A battery pack requires a reliable BMS. Without it you can't control and balance the cells, leading to fire hazards.
