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With the Enerpak Tube, portability and power collide. Able to re-charge almost any smartphone up to 3x while still managing to remain light-weight and completely portable, the Enerpak Tube is the most dynamic battery yet.
The 1A USB port allows for almost any USB device to be re-charged at almost double the speed when compared to traditional USB batteries. Also, the light-weight design makes the Enerpak Tube easy to carry and extremely useful in a pinch.