Israeli startup KADO presented on Kickstarter unusual charger. And we are not talking about a portable battery, but about the usual "fork".
Unlike classic memory, KADO is incredibly thin. It's only a couple of millimeters thicker than a normal USB connector.
Another convenient feature of this non-standard charger - USB is inserted from above and does not take up any space at all. Under it there is a special groove. The output power is 10W, the current is 2. 1A, so that it is enough to charge both a smartphone and a tablet.
KADO supplies are scheduled for December 2017. The price was $ 39.