Chrome 86 could offer improved battery life thanks to this trick
Currently the wake ups in background pages in Chrome are limited to one wake up per second and around one percent of CPU usage. However, to improve battery life the Chromium team conducted experiments where these wake ups were limited to just one per minute.
They ran one experiment on Chrome with 36 background tabs and the about:blank tab in the foreground as well as a second experiment with 36 background tabs and YouTube in the foreground playing a fullscreen video to test their hypothesis. In both experiments, the background tabs included popular sites such as Twitter, Gmail, Amazon and Best Buy.
End users are always looking to get a bit more battery life out of their devices and Google's Chromium team has found a way to accomplish this without negatively affecting Chrome's user experience.