Embodiments describe a wireless charging device that includes: a housing having an outer perimeter and one or more walls defining an interior cavity; a charging surface within the outer perimeter of the housing; a transmitter coil arrangement disposed within the interior cavity below the planar charging surface, the transmitter coil arrangement comprising a plurality of transmitter coils arranged in different layers, each transmitter coil having a pair of termination ends; wherein the plurality of transmitter coils comprises a plurality of inner transmitter coils and a plurality of outer transmitter coils positioned around the inner transmitter coils; and wherein the pair of termination ends of the plurality of outer transmitter coils are arranged differently than the pair of termination ends of the plurality of inner transmitter coils.