WinTekd via Amazon offers its WinTekd Quick Charge 2.0 USB Car Charger with 3.3-Foot Micro USB Cable in Black for $9.99. Coupon code "FFHM3MHV" cuts it to $6.49. Plus, Prime members receive free shipping. That's the lowest price we could find for any color by $4. Features include Qualcomm Quick Charge 2.0 technology and built-in safeguards against excessive current, overheating, and overcharging.