A connection mechanism for an implantable system. The implantable system may include an implantable device, such as a mechanical circulatory device, an implantable converter or control system, and an implantable power system, such as a transcutaneous energy transfer system. The connection mechanism may include a connector connected to one of the implantable device or the power system by wires. The connection mechanism may include a mating receptacle configured at the control system for receiving the connector. The connection mechanism may further include a retention mechanism. The retention mechanism may provide mechanical and/or electrical connection between the connector and the receptacle. The connector, the receptacle, and the retention mechanism may be configured to establish continuous high power or high current electrical communication between the control system and one of the implantable device or the power system.
