All4Cellular offers the refurbished Mophie Juice Pack Helium Charging Case for iPhone 5/5S in Gray (pictured) or Silver for $34.95. Coupon code "CYBER13" cuts it to $30.41. With free shipping, that's $34 under the lowest total price we could now find for a new unit elsewhere. This 1,500mAh battery pack provides up to 6 hours of talk time or up to 7 hours on the Internet. It features LED indicators of battery strength.

Also available is the refurbished Mophie Juice Pack Air Charging Case for iPhone 5/5S in Black, Red, or White for $39.95 before the above coupon code, $34.76 after. With free shipping, that's $33 under the best price we could find for a new unit elsewhere. This 1,700mAh battery pack provides up to 10 hours of talk time or up to 11 hours on the Internet.

A 90-day All4Cellular warranty applies to both.