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Monitor your battery percentage from Notification Center on iOS 9

A quick swipe from the top of your iOS device can now show you battery life for Bluetooth-connected devices.

Ever notice the battery meter placed next to the Bluetooth icon when you connect compatible accessories to your iOS device? That meter is a handy indicator of just how much juice the accessory has left, but it's not all that precise. So with iOS 9, Apple is taking it one step further and adding an exact percentage.

battery-percentage-ios-9.jpg

Jason Cipriani/CNET

Apple now provides a battery widget to the Today panel that shows your iOS device's exact battery percentage, along with any connected accessories.

This means you no longer have to guess how much of a charge your wireless headphones have before heading out on a run.

Adding the widget is easy. Swipe down from the top of your iOS device's screen, making sure the Today panel is selected. Scroll to the bottom of the list, tap on the Edit button. Find the Battery listing and tap on the + sign.

The addition of a battery widget may not be a headlining feature, but it's one that refines the experience just enough to be a welcome addition to iOS.