The ENERGI 2K is wall charger with a built-in high quality, certified* lithium ion battery allowing you to pluck it from the wall and use it as a mobile power pack. It's tiny, yet has enough juice, 2200mAh, to double your phone's battery capacity (an iPhone is around 1800mAh). Don't miss the call. Don't miss the picture. Take it with you where ever you go.
Rechargeable 2,200mAh internal battery.
AC prongs fold away for travel.
Universal USB port for charging most smartphones.
1 Amp circuit rapidly charges your device.