eCase via Amazon offers the Kmashi Quick Charge 2.0 3-Port USB Portable Car Charger, model no. 3221440, for $9.99. Coupon code "E3BJXAQ5" cuts it to $6.99. Plus, Prime members receive free shipping. (Non-members can spend $49 or more to qualify for free shipping; otherwise, shipping costs $6.14.) That's tied with our October mention, a low by $5, and the best price we've seen. It features Qualcomm charging technology designed to refuel your device up to 75% faster than conventional chargers, two 5-volt/2.1-amp ports, and one Quick Charge 2.0 port. Deal ends December 25.