As one of its daily deals, All4Cellular offers the refurbished Mophie Juice Pack Air Charging Case for iPhone 4/4S in White, Red, or Black for $14.99 with free shipping. That's $2 under our mention of a refurb from a week ago and $31 under the lowest total price we could now find for a new unit. This 1,500mAh battery pack provides up to 6 hours of talk time or up to 5 hours on the Internet. It features LED indicators of battery strength. Deal ends today.

A 90-day All4Cellular warranty applies.