Most people have a charger at their home, office or in the car. So I'm not sure how practical this is.
Could be useful for enterprise use when a crew needs to swap batteries in their work issued phones before they go out in the field. Or maybe have these at an airport where people can quickly swap their battery for a nominal fee?
Could be useful for enterprise use when a crew needs to swap batteries in their work issued phones before they go out in the field. Or maybe have these at an airport where people can quickly swap their battery for a nominal fee?