Newegg offers the Mophie Juice Pack Helium 1,500mAh Charging Case for iPhone 5 / 5S in Metallic Black, model no. 2445_JPH-IP5-MBLK, for $39.99. Coupon code "EMCAPKX84" cuts it to $26.99. With free shipping, that's $3 below last month's mention of another color and the lowest total price we've seen for this case. (It's a current low by $3.) This 1,500mAh battery pack provides up to six hours of talk time or up to seven hours on the Internet.