Ocean Technology via Amazon offers the Unitek Quick Charge 3-Port 42-watt USB Car Charger for $10.29. Coupon code "QOOO4XVB" drops it to $6.99. Plus, Prime members bag free shipping. That's the lowest price we could find by $6, although we saw it for a buck less last May. It includes a micro USB cable and is compatible with iOS or Android devices. Deal ends February 28.