You can check the health of your iPhone's battery to determine when it's time for a replacement.

You can check your Apple Pencil battery in two different ways, depending on whether you have a first or second generation Pencil.

Open one of your iPad’s analytics files (these files start with “Analytics” followed by a date). In the analytics file, tap the Share button in the upper right-hand corner of the screen. The Siri ...

Explore the iPhone 17 Pro Max’s extended battery life and energy-efficient design for a seamless daily experience.

Is it OK to check your phone’s power bank Can you charge your tablet in the overhead bin? What about a cordless hair dryer?

Confused by kilowatts? Can’t tell an anode from a cathode? Here is a simple guide to the jargon likely to be tossed around at Tesla’s Battery Day on Sept. 22.