The energy situation in mobile devices isn’t simply controlled by the battery itself. The use of programs can increase the drain on the battery and Chrome is a major culprit for doing this. Google is working on ways to keep it from using processor resources that cause batteries to drain more quickly.
Google recently implemented a new feature in Chrome that detects and shuts down any unnecessary Flash content on a web page. The intent was to free up some CPU cycles and ultimately, improve battery life on mobile devices and notebooks.