https://www.photonicuniverse.com/
12V solar panels charging kits for caravans, motorhomes, boats, yachts, marine
12V solar panel solar charging kits for motorhome caravan boat campervan yacht marine off-grid
solar panelscharging kitsfor caravans
https://www.adafruit.com/product/1407
Inductive Charging Set - 5V @ 500mA max : Adafruit Industries, Unique & fun DIY electronics and kits
The squarish board with two chips on it is the transmitter (power with 9V). The longer board is the output and you can connect that to the part of your project...