VAIO CW over the weekend? You might want to hold those horses just a bit, at least until Sony (or someone) figures out what exactly is causing the batteries on these to zap themselves while asleep. Based on a raft of complaints -- nine pages strong and growing -- over at Notebook Review, it sounds as if the batteries within the outfit's new CW series (at least those with Core i3 CPUs and the 330M GPU) are fading inexplicably quick while resting, leaving many with next to no juice once they crack open the lid the next morning. All sorts of theories are flying, but one in particular seems to note that a bundled Sony battery management application could be causing cells to only charge to a certain percent even when the machine is "off." For now, some folks are actually flipping the battery out for a fraction of a second and popping it back in after putting it to sleep for the night in order to prevent the drain, but we get the feeling that a less janky fix should be in order. Right, Sony?