An ambulatory medical device is provided. The device includes battery lock circuitry configured to transmit a lock signal at a beginning of a battery lock period of the ambulatory medical device and transmit an unlock signal upon detecting an unlock triggering event indicating an end of the battery lock period of the ambulatory medical device. The device also includes a battery being configured to be securely disposed within a chamber of the ambulatory medical device in a first locked manner and provide power to the ambulatory medical device and a battery lock configured to mechanically engage the battery in a second locked manner upon receiving the lock signal indicating the beginning of the battery lock period of the ambulatory medical device and mechanically disengage the battery from the second locked manner upon receiving the unlock signal signaling the end of the battery lock period.
