[lubuntu] Battery power duration.

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http://ubuntuforums.org – Hi guys! I just installed Lubuntu 12.04 And I ''Found'' that it has more power comsuption that it's father, Ubuntu. This shocks me because Lubuntu is supposed to be the most lightweight Ubuntu's family distro. Maybe i'm a little paranoid, but it's real. I think the applet drains more quickly that the battery applet of Ubuntu (Unity) -The kernel is the same, I think. It's the kernel that the update installs, 3.2.0-31-generic What could it be? (Hardware)