Newegg offers the RAVPower 36-watt 4-Port USB Travel / Wall Charger in White, model no. RP-UC07, for $14.99. Coupon code "EMCAKNW32" cuts it to $11.49. With free shipping that's tied with last month's mention and the lowest total price we could find by $5. It features a total output of 7.2 amps. Deal ends January 29.