Electro-mechanical lock core

An interchangeable lock core for use with a lock device having a locked state and an unlocked state, the lock device including an opening sized to receive the interchangeable lock core, the interchangeable lock core comprising:

• a lock core body having an interior, the lock core body including an upper portion having a first maximum lateral extent, a lower portion having a second maximum lateral extent, and a waist portion having a third maximum lateral extent, the third maximum lateral extent being less than the first maximum lateral extent and being less than the second maximum lateral extent, the lower portion, the upper portion, and the waist portion forming an envelope of the lock core body;
• a moveable plug positioned within a first portion of the interior of the lock core body proximate a first end of the lock core body, the moveable plug having a first position relative to the lock core body which corresponds to the lock device being in a locked state and a second position relative to the lock core body which corresponds to the lock device being in the unlocked state, the moveable plug being rotatable between the first position and the second position about a moveable plug axis;
• a core keeper moveably coupled to the lock core body, the core keeper being positionable in a retain position wherein the core keeper extends beyond the envelope of the lock core body to hold the lock core body in the opening of the lock device and a remove position wherein the core keeper is within the envelope of the lock core body to permit removal of the lock core body from the opening of the lock device;
• an electronically controlled blocker positioned in the interior of the lock core body, the electronically controlled blocker being moveable between a blocking position and a release position;
• and
• an operator actuatable assembly including an operator actuatable input device extending beyond a second end of the lock core body, wherein the operator actuatable input device blocks access to the interior of the lock core body, the moveable plug is movable from the first position to the second position with the operator actuatable input device being assembled to the lock core body, and the operator actuatable input device must be removed from a remainder of the interchangeable lock core prior to moving the core keeper from the retain position to the release position.