WholesaleValue4Less via eBay offers the Mophie Juice Pack Helium 1,500mAh Charging Case for iPhone 5 / 5s in Silver, model no. JPH-IP5-SLV, for $29.97 with free shipping. That's tied with our October mention and the lowest total price we could find by $5. This 1,500mAh battery pack provides up to six hours of talk time or up to seven hours on the Internet.