JS Digital via Amazon offers the Jsaux Aluminum Quick Charge 3.0 Dual-USB Car Charger for $11.99. Coupon code "KFZLFU7B" cuts it to $6.47. Plus, Prime members receive free shipping. That's the lowest price we could find by $8. It features an aluminum alloy casing and two LED-lit 3-amp USB charging ports. Deal ends July 31.