Staples has the uNu Aero Series iPhone 5/5s Battery Case with Wireless Charging Technology (black) for $49.99 shipped. That’s $50 or 50% under the original listing, $30 better than Amazon and the best price we’ve ever seen by $10.
With the 2,000mAh, MFi Aero system you can charge with a USB cable traditionally or wirelessly using the included charge pad. All of your device’s features are accessible and it comes with “premium protection from scratches, fingerprints, smudging and bumps.” With this additional juice, Aero says you’ll get 10 hours of talk time, 8 hours of browsing or 42 hours of music playback.
Along with the Apple certification, the Aero case has received a 4.2/5 star rating from over 230 Amazon customers. If you’re looking for a little more power but don’t need the wireless charging, the 2,300mAh uNu DX case is available on Groupon for $39.99 (within $4 of the lowest price ever).