I don't understand the negative reviews. This is actually the best car charger I've ever used in terms of charging capability. I've used many chargers from "premium" retractable ones to motorola with "rapid rate charge" to luxurious carrier chargers. My friend and I have concluded that this charges the fastest. I thought the motorola was good but this one is clearly better. I am thankful that I bought a device from AmazonWireless or else I would have never discovered this little gem. I've bought 5 in total of these and they all work great. I do wish the design and feel were better but in the end all that matters is performance and this charger delivers.