A wireless charging system, comprising: a tool holder that includes: a mounting interface ; and a holding portion that extends transversely from an end region of the mounting interface; and a charging module that defines a charging surface , that is mounted in the mounting interface of the tool holder , and that includes an inductive charging device configured to wireless charge a wirelessly rechargeable battery of a tool resting on the charging surface; the holding portion having a shape configured to at last partially engage a geometry of the tool such that the holding portion supports a body of the tool transversely relative to the mounting interface , and the holding portion configured to apply a load to the tool resting on the charging surface such that the tool is at least partially compressed between the holding portion and the charging surface when resting on the charging surface and urged toward location within a wireless charging tolerance zone of a centerline of an induction coil of the charging module within which the battery is optimally charged, wherein the holding portion of the tool holder includes a soft insert structure that defines a cavity sized for an interference fit with at least a portion of the tool, and that is configured to apply at least a portion of the load applied by the holding portion ; and wherein the soft insert structure includes a bladder that forms the interference fit between the holding portion and the tool as the bladder is expanded therebetween; and wherein the tool holding portion is configured such that the load is applied in a direction along a centerline of an induction coil of a battery within the tool such that the centerline of the induction coil of the battery is held within the charging tolerance zone of the centerline of the induction coil of the charging module . a tool holder that includes: a mounting interface ; and a holding portion that extends transversely from an end region of the mounting interface; and a mounting interface ; and a holding portion that extends transversely from an end region of the mounting interface; and a charging module that defines a charging surface , that is mounted in the mounting interface of the tool holder , and that includes an inductive charging device configured to wireless charge a wirelessly rechargeable battery of a tool resting on the charging surface; the holding portion having a shape configured to at last partially engage a geometry of the tool such that the holding portion supports a body of the tool transversely relative to the mounting interface , and the holding portion configured to apply a load to the tool resting on the charging surface such that the tool is at least partially compressed between the holding portion and the charging surface when resting on the charging surface and urged toward location within a wireless charging tolerance zone of a centerline of an induction coil of the charging module within which the battery is optimally charged, wherein the holding portion of the tool holder includes a soft insert structure that defines a cavity sized for an interference fit with at least a portion of the tool, and that is configured to apply at least a portion of the load applied by the holding portion ; and wherein the soft insert structure includes a bladder that forms the interference fit between the holding portion and the tool as the bladder is expanded therebetween; and wherein the tool holding portion is configured such that the load is applied in a direction along a centerline of an induction coil of a battery within the tool such that the centerline of the induction coil of the battery is held within the charging tolerance zone of the centerline of the induction coil of the charging module . <EOS>