HeightsMobile via eBay Daily Deal offers the Mophie Juice Pack Air Extended Battery Case for 2nd or 3rd Generation iPod touch in Blue, Grey, or Red for $8.99. With free shipping, that's $1 under our mention from two weeks ago and the lowest total price we could find by $1. This battery pack, compatible with only the 2nd- or 3rd-generation iPod touch, provides up to 36 hours of music playback, up to six hours of video playback, and more.