 HP claimed it to be the world's thinnest notebook, although this record has now been broken, as it is 0.70 inches throughout, whereas the Dell Adamo is 0.65 inches thick all around.According to the specifications, its 3-cell Lithium ion battery will provide up to 3 hours and 10 minutes' battery life, depending on usage.The HP Envy line of laptops and other products replaced the Voodoo Envy when HP and VoodooPC merged.