These kiosk's are very popular in Japan and other countries alike where foot traffic is high, and the demand for always having access to device charging is a necessity.  Never miss a moment when you always have stations globally to return your charger and replace it with a new one. If you can't return it yours to keep. There is also a subscription model for $5.00 a month you can rent and return as many chargers as you would like. This will be the next big trend in the U.S. and has started in some hotels near Disneyland in Southern California. Catch this trend now before it passes you by.