After noticing that one of their employees was consistently getting more battery life out of his MacBook after switching to Safari, the company decided to modify a testing system used to collect data on BatteryOS to instead monitor power consumption on a MacBook.
We measured the power consumption of watching videos on YouTube, browsing Reddit, streaming on Netflix vs Putlocker, creeping on Twitter and FaceBook, composing emails on services like Gmail and Hotmail, and searching for stuff on Google, Bing (yup, surprisingly, it’s still used), and DuckDuckGo. We used a factory-restored MacBook Pro Retina 13” to test each website on one internet browser at a time. No programs other than the browser were open.
After averaging data from all the websites tested, Safari consumed the least power allowing for 6 hours and 21 minutes of total usage, Firefox came in second with 5 hours and 29 minutes of usage, and Chrome came in last with 5 hours and 8 minutes of usage.
Essentially, a simple switch of browsers from Chrome to Safari is likely to give you an hour or more of battery life on your MacBook. This corroborates another recent report that using Safari gets you an extra 36% more battery life over Chrome.
Take a look at the chart below or hit the link for more details...