Meritline offers this Universal USB Car Charger DC Adapter, model no. 5V500MA, for $3.99. Coupon code "MLCK917YNL1" cuts it to 89 cents. With free shipping, that's tied with our April mention and the lowest total price we could find by $6. This adapter features a protective circuit to prevent overcharging (IC protection) and LED Indicator. It supports a wide variety of electronics. Coupon expires September 19.

Expect this item to take two to three weeks to arrive.