As one of its daily deals, All4Cellular offers the refurbished Mophie Juice Pack Plus for iPhone 4 and 4S in seven colors (Black pictured), model no. 1160JPPLP4, for $24.99 with free shipping. That's $21 under our July mention of a new unit and $65 under the lowest total price we could find for a new unit today. This 2,000mAh battery pack provides up to 8 hours of talk time in 3G or up to 16 hours in 2G. It features a hard shell case, rubberized bumper, and LED indicators of battery strength. Deal ends today.

Note: A 90-day All4Cellular warranty applies.