| http://www.w3.org/ns/prov#value | - Flexible tether member 124 is made of a flexible material, such as silicone, to allow substantial movement of recharge module 34 relative to other modules 30 and 32 as illustrated in FIG. 9B. In some embodiments, flexible tether member 124 is shaped as a helix to allow recharge module freedom of movement some significant distance away from other modules 30 and 32.
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