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DUO 1 Battery Test - 1 Day - 68% left - 7h52min Screen time [WIFI only - one note - no battery saver] - Hourly results : r/surfaceduo
![New battery saver added to Opera's browser for computers, extending laptop battery life by up to 50% - Opera Newsroom New battery saver added to Opera's browser for computers, extending laptop battery life by up to 50% - Opera Newsroom](https://www-static-sites.operacdn.com/wp-content/uploads/sites/5/2019/01/opera-powersaver-info.png)
New battery saver added to Opera's browser for computers, extending laptop battery life by up to 50% - Opera Newsroom
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