This document describes techniques and apparatuses directed at reducing inductive-charging power loss. In aspects, a mobile device includes a multi-layer flexible printed circuit board (FPCB) coil that forms a receiver coil (202) having a Litz-wire structure. The FPCB coil includes a multi-trace bundle, having traces (210) systematically routed throughout the different layers (200, 204) of the FPCB coil to reduce eddy current losses.
