Philips PowerPotion DLP3003V
A smart and compact backup battery for the iPhone, with a unique bottle-shaped form factor. Its Lightning connector is conveniently built into the bottle cap made from anodized aluminum and featuring a knurling pattern. When in use, the iPhone can be held comfortably in one hand along with the battery. Alternatively, any other smart phone or tablet can be charged using the USB-port at the bottom of the unit.
Not only did this product become a best-seller, running at a high profit margin, it also received tremendous media exposure.
Additional credits: Catherine Wong (design support)