Amazon has the Mpow 6.0Amps 30W Dual Rapid USB Port Car Charger for $9.99. However, when you enter the coupon code: Y2AFH64N at checkout the price drops to only $6.99 Prime shipped. That’s $15 off the list price and the lowest we could find. This Mpow with its Xsmart Technology can identify your device and give you the fastest charging speed available. Over 300 Amazon customers gave it 4.3/5 star reviews.