Battery pack, electronic combination, battery management system, power tool system, and control method for a power tool

A battery pack for powering a power tool, comprising:

• a housing;
• a cell accommodated in the housing;
• a power tool interface disposed on the housing and couplable to the power tool;
• a discharging circuit electrically connected to the cell and the power tool interface separately, the discharging circuit transferring electrical energy to the power tool via the power tool interface;
• a sensor electrically connected to the cell, the sensor generating a sensor data indicating an operating parameter of the battery pack;
• and
• a first electronic controller comprising an electronic processor and a memory storing a machine learning program, the first electronic controller at least controlling the discharging circuit and being configured to:
• receive the sensor data;
• process the sensor data using the machine learning program to generate an output based on the sensor data;
• and
• adjust a protection threshold of the battery pack based on the generated output.