Google has recently enabled the ability to toggle on a battery saving feature in Google Chrome. This video shows you how to enable Energy Saver in Chrome. When on, Chrome conserves battery power by limiting background activity and visual effects, such as smooth scrolling and video frame rates.
LINK - How to Enable Memory Saver Mode in Google Chrome:
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From Google:
Energy Saver maximizes battery life
Running low on battery and don’t have a laptop charger nearby? When you’re browsing the Web with Chrome and your device battery level reaches 20%, Chrome will save battery by limiting background activity and visual effects for websites with animations and videos.