A battery system, comprising: - a first terminal and a second terminal configured to electrically couple to an electronic component; and - a control system comprising: - a current source electrically coupled to the first terminal; and - a current detector configured to receive a current from the second terminal; characterized in that - the current source is configured to receive a source activation pattern corresponding to an asynchronous signal indicating when to activate or deactivate the current source and a current signal specifying a current value to be output by the current source, wherein the current signal comprises a second pattern different from the source activation pattern; - the control system is configured to direct an asynchronous current from the current source to the first terminal according to the source activation pattern; - the control system is configured to receive a current signal status from the current detector, wherein the current signal status is associated with the current received by the current detector via the second terminal; and - the control system is configured to disconnect the electronic component from the first terminal or the second terminal when the current signal status does not match the source activation pattern. - a first terminal and a second terminal configured to electrically couple to an electronic component; and - a control system comprising: - a current source electrically coupled to the first terminal; and - a current detector configured to receive a current from the second terminal; characterized in that - the current source is configured to receive a source activation pattern corresponding to an asynchronous signal indicating when to activate or deactivate the current source and a current signal specifying a current value to be output by the current source, wherein the current signal comprises a second pattern different from the source activation pattern; - the control system is configured to direct an asynchronous current from the current source to the first terminal according to the source activation pattern; - the control system is configured to receive a current signal status from the current detector, wherein the current signal status is associated with the current received by the current detector via the second terminal; and - the control system is configured to disconnect the electronic component from the first terminal or the second terminal when the current signal status does not match the source activation pattern. - a current source electrically coupled to the first terminal; and - a current detector configured to receive a current from the second terminal; - the current source is configured to receive a source activation pattern corresponding to an asynchronous signal indicating when to activate or deactivate the current source and a current signal specifying a current value to be output by the current source, wherein the current signal comprises a second pattern different from the source activation pattern; - the control system is configured to direct an asynchronous current from the current source to the first terminal according to the source activation pattern; - the control system is configured to receive a current signal status from the current detector, wherein the current signal status is associated with the current received by the current detector via the second terminal; and - the control system is configured to disconnect the electronic component from the first terminal or the second terminal when the current signal status does not match the source activation pattern.