Anker's popular PowerDrive 2 dual-port car charger is currently on sale for $7.58. That's a great price for a dual-port car charger, but with this one offering up PowerIQ out of both ports, it makes it an even sweeter deal. This won't be on sale for long, so you'll want to pick it up before it is gone.
The PowerDrive 2 is a great car charger to pick up, since it does have two USB ports here, allowing the driver and passenger to both charge their smartphones while in the car. It does not have Quick Charge functionality, but instead has PowerIQ here, which is going to allow you to still charge up your smartphone quickly. PowerIQ technology is Anker's proprietary technology that talks with your smartphone to determine how much current it can handle and only push that amount. So that it is charging quickly, but without damaging your phone. And this works on every single smartphone, which is also nice to see. It does a max of 2.4A per port or 4.8A total. Which is about the same speed as Quick Charge 2.0 and Samsung's Adaptive Fast Charge. So it's definitely worth picking up and at a price of under $8 for a single car charger, it's hard to pass this one up.
This item is also eligible for Amazon Prime's free shipping. Which includes free two-day shipping, and pretty cheap (usually $3.99) next-day shipping if you need it extra fast. If you are not an Amazon Prime member yet, you can sign up for a free trial of Amazon Prime. You'll get 30 days free (if you're a student, you get 6 months), and then it's $119/year (or $59/year for students). Prime members do get a whole lot more than just free shipping though, so be sure to check out the full benefits.