ZeroLemon Direct via Amazon offers the ZeroLemon iPhone 6 Battery Case for $59.99. Coupon code "U5KNT8AW" cuts it to $39.99. Also, free shipping applies. This case features a 3,500mAh battery, aluminum shield back plate, padded corners, LED battery indicator, and has a microUSB charging port with Sync Direct technology for syncing without removal of the case. It ships with a microUSB charging cable and adds up to 16 hours of talk time. Deal ends April 7.