Mophie announced on Tuesday that its latest juice pack for iPhone 5, an ultra-thin, 1500mAh battery case that the company said is 13 percent thinner than its popular previous-generation juice packs. Mophie is making the $79.95 case available to loyal customers while supplies last on its website, and the battery case will give you around six extra hours of talk time, Internet use, and video playback, and up to 30 hours of audio playback. The darker Metallic color will ship by Feb. 14, and the lighter, silver color will go out sometime in March.

It’s a slightly smaller battery that comes with the 2000mAh juice pack plus that Mophie sells for iPhone 4S, but it’s slightly slimmer than both the “air” and “plus” models at 2.49 in x 5.49 in x 0.59 in.