This transmitter and receiver module set is capable of sending power wirelessly with a regulated output voltage of 5V and a maximum current of 0.5A. The transmission distance is as far as 20mm.
These modules would be useful for creating a customized battery pack that charges without wires. Since the module isn’t a qi standard charger it will not work with cell phones.
Waterproofing and dustproofing are major areas that are benefited by wireless power transmission. The entire enclosure can be sealed but still charged. Coupling the wireless transmission with magnets to keep the coils aligned could provide a power solution that’s waterproof but doesn’t require batteries. Customized weatherproof speakers are one possible application.
1 x Wireless Power Transmitter
1 x 5V 500mA Wirelss Power Receiver