A removable media battery pack for supplying power to a media accessor of an automated data storage library. A media shell of the removable media battery pack has a structural configuration operable to be physically engaged by a media shell gripper of the media accessor. A rechargeable battery of the removable media battery pack is disposed within the media shell. A media shell interface of the removable media battery pack is integrated with the media shell and coupled to the rechargeable battery to provide power to the media accessor.