, at a second doorbell mode, the camera module of the doorbell camera 106 is electrically decoupled from the transformer, and relies on the battery to provide needed power. The battery is recharged at the first camera mode when the button is not pressed. The battery needs to be sized to be sufficiently large so that it can charge back up in between button presses. In some implementations, the doorbell button of the doorbell camera 106 is configured to sustain a predetermined number e. g. , 100 of continuous presses without losing battery power.

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