A system comprising a device and a battery for supplying current to the device, the battery being coupled to the device via a first pathway and a second pathway separate from the first pathway, the battery comprising: a housing ; one or more battery cores disposed in the housing ; and a battery management system, BMS , electrically connected to the one or more battery cores and configured to: receive an input signal from a power input element of the device; in response to receiving the input signal, cause the battery to supply, via the first pathway, a safety voltage to a control unit of the device; communicate with the control unit ; receive a controlling signal from the control unit ; in response to receiving the controlling signal, cause the battery to be in a conducting-on state to supply, via the second pathway, an operating voltage to one or more components of the device, the operating voltage being higher than the safety voltage; receive a signal selected from a group consisting of (a) a termination signal from the control unit , (b) a power-off signal from a power switch of the device, and (c) an absence of an in-place signal received within a predetermined period of time, indicating the battery is not connected to the device; and configure the battery cores to stop supplying current at the operating voltage to the device after receiving the selected signal. a housing ; one or more battery cores disposed in the housing ; and a battery management system, BMS , electrically connected to the one or more battery cores and configured to: receive an input signal from a power input element of the device; in response to receiving the input signal, cause the battery to supply, via the first pathway, a safety voltage to a control unit of the device; communicate with the control unit ; receive a controlling signal from the control unit ; in response to receiving the controlling signal, cause the battery to be in a conducting-on state to supply, via the second pathway, an operating voltage to one or more components of the device, the operating voltage being higher than the safety voltage; receive a signal selected from a group consisting of (a) a termination signal from the control unit , (b) a power-off signal from a power switch of the device, and (c) an absence of an in-place signal received within a predetermined period of time, indicating the battery is not connected to the device; and configure the battery cores to stop supplying current at the operating voltage to the device after receiving the selected signal. receive an input signal from a power input element of the device; in response to receiving the input signal, cause the battery to supply, via the first pathway, a safety voltage to a control unit of the device; communicate with the control unit ; receive a controlling signal from the control unit ; in response to receiving the controlling signal, cause the battery to be in a conducting-on state to supply, via the second pathway, an operating voltage to one or more components of the device, the operating voltage being higher than the safety voltage; receive a signal selected from a group consisting of (a) a termination signal from the control unit , (b) a power-off signal from a power switch of the device, and (c) an absence of an in-place signal received within a predetermined period of time, indicating the battery is not connected to the device; and configure the battery cores to stop supplying current at the operating voltage to the device after receiving the selected signal. <EOS>