This is important to smartphones as "Samsung S3, S4, S5 'and older / similar device indefinitely in
Be able to operate Navigation mode in the car.
Since the Navifunktion consumes a lot of power, less than 1 amp Car adapter are only conditionally suitable, since despite
Connecting the battery level is empty!
Besides reduced at 1 Amp power, the charging time of the connected terminal.
Conclusions: thoroughly recommended - 5 star