本发明揭示一种用于使一电源放电或核验一电源之保护组件以确保一工具在各种温度下适当运作之方法、系统及器件。该电源使用交握信号来与一开关沟通以根据该电源之温度而创建一电力分配方案。该电源可根据该电源之温度依一正常起动速率或一较慢起动速率放电。交握信号亦可用于核验保护组件，其中该等保护组件借由指示该等保护组件适当运作之各自交握信号而对唤醒信号作出回应。

A method, system and device for discharging power or validating protective elements of a power source to ensure proper functioning of a tool at various temperatures. The power source communicates with a switch using handshake signals to establish a scheme for power distribution depending on the temperature of the power source. The power source can discharge power at a normal start-up rate or a slower start-up rate depending on the temperature of the power source. Handshake signals can also be used to validate protective elements, where the protective elements respond to wake-up signals with respective handshake signals indicating that the protective elements are functioning properly.