NOTION INK ADAM TABLET TO GET 15 HOURS OF BATTERY LIFE?

Notion Ink says that the company�s upcoming Adam tablet PC will run for 15 hours on a single charge. Battery life estimates are always subject to fluctuation. Companies often promise 14 hours of battery life and deliver only around 7 hours. So will Adam manage to get the kind of battery life it promises?The Notion Ink Adam tablet has a 24Whr battery. It is powered by a low power NVIDIA Tegra 2