Battery Saver

The Battery saver feature will help you extend your laptop battery life when unplugged, much like battery saving apps but without the need to download extensions. What it does, all behind the scenes, is prioritize your browser’s activities - reduces activity in background tabs, tweaks your video-playback parameters, reschedules JavaScript timers, pauses plug-ins and stops animations.

The first time you unplug your laptop while using Opera, the battery saver icon will appear to the right of your address bar, along with an offer to activate power saver mode. When enabled, the battery saver feature will be active whenever you’re unplugged, giving you longer battery life.

If you haven’t done so already, you can switch on the Battery saver feature in your Settings. To do so:

1. Go to Settings (Alt+P).
2. On the left panel, click Advanced, followed by Features.
3. On the main page, under Battery saver, toggle on Enable battery saver.

In the same location, you can later enable/disable battery saver, select when the feature will automatically activate, and decide whether to show the battery saver icon.

When battery saving mode is active, and if you have the battery saver icon enabled, you will see the small battery-shaped icon on the right side of your address bar. Click on it to see the estimated battery life remaining, as well as an on/off switch for the feature. Since the battery saver mode is built into the free Opera browser, you don't need to use a separate battery saver app.