While that certainly helped, especially since organizations and companies like Mozilla or Opera had to improve their engines as well to provide users with a similar experience, it put other features such as customization or control on the backburner.
Nowadays, focus seems to have switched to battery live. The past couple of months has seen Microsoft release a battery comparison that saw Edge coming in first and Chrome last, and Opera Software shipping its browser with a battery saver mode that the company claims beats other browsers.
And now it is Google's time to claim that battery life in Chrome 53 has improved significantly over previous versions of the browser.
Google demonstrates the improvement with a comparison video that pits Chrome 46 released in 2015 against Chrome 53 released in 2016 against each other.
In that video, the device running Chrome 46 dies after 8:27 hours of playing a Vimeo video while the identical device running Chrome 53 dies after 10:39 hours or 2:12 hours longer.
Google did not test Chrome 53 against other browsers. If you remember Microsoft's tests, it did use Surface Books for the testing as well. The company's browser Edge came in first with 7:22 hours of battery time while Chrome came in last with 4:19 hours.
The tests cannot be compared with each other, as different videos were used in the tests.
Update: Microsoft released an update battery test that showed the improvements made in the Anniversary Update compared to the Fall 2015 update.
Additionally, Microsoft compared Edge against Chrome and came to the result that Edge is more efficient than Chrome (and Opera and Firefox).
The company created a new side by side comparison which Edge one against the other browsers.
It seems clear that battery time is the new battleground for browser developers, with each claiming the coveted "best in class" spot for themselves.
Playing a video non-stop until the battery dies is probably not the best "real world" test that one could come up with to test battery life. Most users are probably not using their mobile devices to play videos non stop.
What's missing is an independent test that pits all major browsers using default configurations against each other in real-world scenarios.
While one browser may very well be more optimized than others, it is clear that all users will benefit from this new battleground eventually. Browser developers will start pushing improvements to better their software's battery life; a process that has already started.
Now You: Do you care about battery life?
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Ghacks is a technology news blog that was founded in 2005 by Martin Brinkmann. It has since then become one of the most popular tech news sites on the Internet with five authors and regular contributions from freelance writers.