| CPC B65G 1/065 (2013.01) [B60L 53/16 (2019.02); B60L 53/35 (2019.02); B65G 1/0464 (2013.01); H02J 7/00036 (2020.01); H02J 13/0005 (2020.01); B65G 2201/0235 (2013.01); Y02T 10/70 (2013.01)] | 18 Claims | 

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               1. A system comprising: 
            a housing, including a charge unit for a robotic load handling device operative on top of a grid framework, said charge unit including: 
              a power transfer means arranged to transfer power to the robotic load handling device, said power transfer comprising an inductive power transfer means; and 
                  a supporting structure fixedly attached to a grid framework, the supporting structure arranged to position the housing over the grid framework. 
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               16. A storage system comprising: 
            a first set of parallel rails or tracks extending in an X-direction, and a second set of parallel rails or tracks extending in a Y-direction transverse to the first set in a substantially horizontal plane to form a grid pattern comprising a plurality of grid spaces; 
                a plurality of stacks of containers located beneath the rails, and arranged such that each stack is located within a footprint of a single grid space; 
                at least one transporting device, the at least one transporting device being arranged to selectively move laterally in the X and Y directions, above the stacks on the rails; and 
                a system including a housing having a charge unit for the at least one transporting device, said charge unit including: 
              a power transfer means arranged to transfer power to the at least one transporting device, said power transfer comprising an inductive power transfer means; and 
                  a supporting structure fixedly attached to the grid pattern, the supporting structure arranged to position the housing over the grid pattern. 
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               18. A method of charging a robotic load handling device using a charge unit, the robotic load handling device operative on top of a grid framework, the charge unit including a power transfer means arranged to transfer power to the robotic load handling device, said power transfer means including an inductive power transfer means, the method comprising the step of: 
            inductively coupling the robotic load handling device to the charge unit. 
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