iTech Deals offers the Duracell 2-Port 3.1-amp USB Charger for $4.49 with free shipping. That's a buck under our Cyber Monday mention and the lowest total price we could find by $15. This device is compatible with most USB-equipped devices.

Stocking up? Add two to cart for $7.99 with free shipping. That's a buck under our Cyber Monday mention of a 2-pack and the lowest total price we could find for two by $30.