Tired of needing a charge halfway through the day? Jalopnik readers can save over 30% (plus free shipping) on a black Afterburner Battery Case for iPhone 6 or 6+. This lithium polymar battery case will give your iPhone an extra 1.5 charges, so you don't run out of juice when you're on-the-go.

Here's the lowdown on this case:

  • 3200mAh – that's about 150% extra battery capacity (4800mAh for the 6+ model)
  • Slim – the Afterburner doesn't add much volume to your iPhone
  • Built-in kickstand
  • Lightning port – Charges with the same cable as an iphone, so you don't need to carry an extra cord

The Afterburner is only available inside the US and ships free. The 6 version costs $40 (down from $60) and the 6+ costs $44. Interested? Head for the link:

>> The Afterburner Case for iPhone 6/6+