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(Image: Matthew Miller/ZDNet)
Open package, here is the Mophie Juice Pack
The HTC One Mophie Juice Pack is large, just as it is for the iPhone and Galaxy S III. When you add an extra 2,500mAh external battery (the HTC One has an integrated 2,300mAh battery), it is going to add bulk to the device. The battery dimensions are 6.06x2.88x0.67 inches and 5.05 ounces. This means you end up with a longer and thicker overall package. The added thickness doesn't bother me much, though, and actually gives the HTC One a rather substantial feel in the hand. I could see people using this as a daily case to help ensure that they go at least a day with the HTC One.