A wireless charger assembly is used for transferring power to an electronic device through inductive charging. The wireless charger assembly includes a bottom case releasably mounted to an exterior flatbed, a transmitter coil, and a top case. The transmitter coil transmits power to a receiver coil of the electronic device through inductive charging. The top case has a working platform mounted around the working surface of the flatbed, a neck portion extending downwardly from the working platform, and a slot defined by the working platform and the neck portion. The neck portion releasably retained to the closed loop wall.