A temperature-controlled container for a refrigeration device, comprising: a thermal storage unit included in the temperature-controlled container of a size and shape to fit within a freezer section of a refrigeration device, the container including: one or more walls formed from insulative material, an exterior surface configured to reversibly mate with interior surfaces of the refrigeration device, a thermally-sealed internal region, at least one thermally-insulated partition within the thermally-sealed internal region to form at least one storage region and at least one phase change material region, at least one unidirectional thermal conductor (970, 1500) positioned through the one or more walls so that heat is conducted from the thermally-sealed internal region to the interior surfaces of the refrigeration device when the temperature-controlled container is positioned within the refrigeration device, an aperture with an edge dimension larger than a cross-section of a refrigeration coil of the refrigeration device, a thermal diode unit of a size and shape to fit within the refrigeration section of the refrigeration device, the thermal diode unit including a top edge configured to be positioned adjacent to a vent aperture of the refrigeration device, and a control unit (3020, 3100) including a temperature sensor, a controller responsive to the temperature sensor, and a fan responsive to the controller. a thermal storage unit included in the temperature-controlled container of a size and shape to fit within a freezer section of a refrigeration device, the container including: one or more walls formed from insulative material, an exterior surface configured to reversibly mate with interior surfaces of the refrigeration device, a thermally-sealed internal region, at least one thermally-insulated partition within the thermally-sealed internal region to form at least one storage region and at least one phase change material region, at least one unidirectional thermal conductor (970, 1500) positioned through the one or more walls so that heat is conducted from the thermally-sealed internal region to the interior surfaces of the refrigeration device when the temperature-controlled container is positioned within the refrigeration device, an aperture with an edge dimension larger than a cross-section of a refrigeration coil of the refrigeration device, one or more walls formed from insulative material, an exterior surface configured to reversibly mate with interior surfaces of the refrigeration device, a thermally-sealed internal region, at least one thermally-insulated partition within the thermally-sealed internal region to form at least one storage region and at least one phase change material region, at least one unidirectional thermal conductor (970, 1500) positioned through the one or more walls so that heat is conducted from the thermally-sealed internal region to the interior surfaces of the refrigeration device when the temperature-controlled container is positioned within the refrigeration device, an aperture with an edge dimension larger than a cross-section of a refrigeration coil of the refrigeration device, a thermal diode unit of a size and shape to fit within the refrigeration section of the refrigeration device, the thermal diode unit including a top edge configured to be positioned adjacent to a vent aperture of the refrigeration device, and a control unit (3020, 3100) including a temperature sensor, a controller responsive to the temperature sensor, and a fan responsive to the controller.