FosPower via Amazon offers the FosPower Apple MFI-Certified Dual USB and Lightning Cable 6.6-amp Car Charger in Black, model no. FOSCHR-2008, or White, model no. FOSCHR-2009, for $17.99. Coupon code "3M9YYGZY" cuts it to $13.99. Plus, Prime members qualify for free shipping. (Non-Prime members can spend $35 or more to qualify for free shipping; otherwise, shipping adds $6.18) That's the lowest total price we could find by $4. This 33-watt charger features two 2.1-amp USB ports and a 3-foot, MFI-certified Lightning cable.