It's no secret that Google Chrome tends to be a battery life hog compared to other popular web browsers, which is why in the latest Chrome Beta, Google have implemented a feature that will hopefully save you some battery.
The feature will essentially detect and shut down any unnecessary Flash content on a webpage, which should save some CPU cycles considering Flash content is usually quite processor intensive. If the CPU isn't working as hard to display a web page, it will result in better battery life for your laptop or mobile device.
According to Google, the feature will pause content that is not central to the webpage, such as Flash animations, while it will let important content, like Flash videos, continue to run. If important Flash content is ever accidentally paused, you'll be able to click on it to resume its playback.
Google has worked with Adobe to implement the feature in Chrome, although it won't be enabled by default: you'll need to open Chrome's content settings, and select "detect and run important plugin content" if you want to take full advantage of the feature.
The feature is rolling out in the latest Chrome Beta for desktops right now, and will soon transition to the main stable build of Chrome. Google also indicates that more power optimizations are coming soon, which is awesome to hear.