"Getting a new laptop and want the longest battery life possible? Make sure to fully charge, then fully DRAIN you battery twice. Charge it, then unplug it and use it until it completely dies. This allows the laptop to use the whole battery and not just part of it. This can be applied to any device using a Lithium or Ni-Cad battery (i.e. Cell Phones, GPS, Netbooks, Portable DVD Players, MP3 Players, iPads, Mobil Video Games, etc)."