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uNu EcoPack Snap-On Case and Battery

For long, all-day excursions, make sure your mobile partner-in-adventure has enough power to last you the day. uNu's Ecopak Battery System ($80) doubles your iPhone 5's battery life and features a standard USB port to share juice with other devices. Plus, you can detach the extended battery when your battery is full and cut down on weight. Among all of the bulky black battery packs out there, this Tiffany Blue case is a site for sore eyes!

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