For TODAY ONLY Daily Steals is offering a refurbished Mophie Juice Pack Helium Protective Charging Case for iPhone 5/5s for only $35 + Free Shipping. The case is regularly $100. At Amazon the phone case is currently selling for $68.

This case is essentially an extra external battery for your phone, extending the usage of up to 5 hours of talk, and 7 hours of video playback.