If you know how OLED displays work, you know about one of their greatest strengths: Individual pixels can be shut off, offering deeper blacks and power savings. Dark modes, now available on most ...

The new iPhone 17 models get better battery life, partly through this iOS 26 feature that is available on other iPhones, too.

No matter how big your iPhone's battery is, chances are you're always looking for ways to make it last longer. You can do that by tweaking a bunch of settings, like turning off the always-on display, ...

Most smartphones come with a power-saving mode that, when enabled, tweaks system settings to reduce battery usage and help the device last longer in a crunch. Turning on battery saver or low power ...