"It works as advertised and dramatically cools my iPad" - Rich Pickett, Twin & Turbine Magazine
Connect the supplied USB-C cable from the COOLCASE to the iPad. Then, power the fan by:
(1) The iPad's battery itself. A fully charged iPad can power the fan and run apps for 3-5+ hours in direct sun. Power - iPad to fan.
(2) USB-C power source. Plug a USB-C cable into the COOLCASE and it will power the fan and charge the iPad both. Power - USB-C TO fan AND iPad.
The choice is yours! No batteries.