Tanga is offering the PowerSlider Lightning iPhone 5 Rechargeable External Battery Case with 8 Pin Lightning Charging Connectors for only $17.99 shipped. That’s $32 off the list price of $50 and the lowest price we could find for the battery case.

Custom designed for Apple iPhone 5, it sports a powerful 2200 mAh Capacity Smart Polymer-Lithum battery can double your iPhone 5 battery case while maintaining a slim profile after installation. Also, it has a built-in Kick Stand feature for easy video watching or Facetime. expand full story