US Patent 7233548 Power supply apparatus and method using same

A power supply module removably disposed within an automated data storage and retrieval system. An automated data storage and retrieval system which includes one or more power supply modules removably disposed therein. An accessor movably disposed with an automated data storage and retrieval system comprising a gripper mechanism which can be releaseably attached to a power supply module. A method to supply power to an automated data storage and retrieval system. A method to monitor the operation of a power supply module removably disposed within an automated data storage and retrieval system.