A medication delivery device having a lock element. The device is connectable to an electrical plug of a conduit. The device includes an external housing with an opening that ports to a plug receiving hollow within an interior volume. An electrical circuit connected to at least one of a rechargeable battery and a memory controller includes a connection element within the plug receiving hollow. The lock element travels within the plug receiving hollow when a dose delivery assembly of the device operates for forcing medication from the device. The lock element is sized and positioned to have its travel halted by abutment with the plug, when the plug is within the plug receiving hollow and electrically interfacing with the connection element, to thereby halt the dose delivery assembly from further operating for forcing medication from the device.