Mavericks allows you to look at power hungry apps, so you can keep track of what’s draining your batter. To do so, click no the battery icon in the menu bar and then look in the Apps Using Significant Energy section.
If you’re concerned about an aggregate of apps using too much energy, hold down the option key when you click on the icon. When you do so, the Condition will be listed; hopefully as Normal.
krypted October 25th, 2013