Luzy's Storage Place via Amazon offers Prime members the 2.4A Apple-Certified Mfi Rapid Coiled Lightning Car Charger in Blue for $11.99 with free shipping. (Non-members can spend $35 or more to get free shipping; otherwise it adds $5.14.) That's the lowest total price we could find for such a certified charger by $17. The cable is 1.5 meters long.