Posts Tagged: "powerspring"

Mili Powerspring

MiLi Powerspring Juices Up iPhone 4s

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MiLi is no stranger to iPhone battery packs.  So it should come as no surprise (it doesn’t to us), that today they released the MiLi Powerspring 4.  It’s a 1600 mAh backup battery case for the iPhone 4.  It should double your battery life, that is depending on what you’re...