Power supply lock for use with a digital camera having a connector door to slidably and selectively close/open a power supply recess

In a power supply having a connector body with a connection seat formed on the connector body, the power supply being adapted to be applicable for use with a digital camera having a connector door slidably and selectively opening a power supply recess along a pair of opposite tracks, wherein a recess is defined in a side face of the connector body and having a clamping plate extending out from a distal edge defining the recess, the clamping plate having a hook formed on a free edge of the clamping plate so as to correspond to one of the tracks to allow the power supply to securely engage with the digital camera.