Sunvalley Brands via Amazon offers the RAVPower 54W 4-Port Car Charger for $12.99. Coupon code "KINJA545" cuts it to $10.99. Plus, Prime members bag free shipping. That's $8 under our August mention and around $6 less than what most eBay vendors charge. It features iSmart 2.0 technology and four USB Ports: one quick charge 3.0 port and three 5-volt/2.4-amp ports. Deal ends October 31.