In a little blip about Sony’s decision to amend their stated laptop battery life numbers, Gizmodo‘s Elaine Chow explains a little bit about how those Japanese manufacturers cook up those numbers in the first place:
Notebook vendors usually base their battery numbers off of Japanese tech association Jeita’s method, which measures power depletion when the laptop’s completely idle and then averages that number with the laptop’s life when running a movie file. Sony will be switching to a Jeita “A” standard, which uses only the movie file test’s results.
[Gizmodo]
Sony is extremely professional. I would love to be able to buy one of their laptops, but al the Sony laptops have ridiculous high prices.