Unlike Microsoft’s Surface Pen that depends on a user-replaceable AAAA battery, Apple’s Pencil has a non-replaceable, rechargeable 0.329 Wh li-ion one.
Though it holds just five precent of the charge of an iPhone 6s battery, it can gain 30 minutes’ worth of runtime with a quick 15-second charge via the iPad Pro’s Lightning port.
However, the accessory itself lacks a battery status indicator that would give an at-a-glance overview of how much juice it has left. In this tutorial, you’ll learn how to easily check the battery status of your Apple Pencil, right on your iPad Pro.
How to check Apple Pencil battery status
To check on the battery status of your Apple Pencil, you’ll have to enable iOS 9’s new Battery widget on your iPhone or iPad Pro.
Step 1: Access the Notification Center by swiping down from the top of the screen of your iPad Pro.
Step 2: Switch to the Today view, scroll down to the bottom and tap the Edit button.
Step 3: You shall now see a list of available widgets on your device. Tap the plus sign next to “Batteries” to enable the widget. You can optionally reorder the widgets on this screen, if you like.
Step 4: Tap Done to finish.
You can now easily see how much battery your Apple Pencil has left, right within the Notification Center. Simply swipe down from the top of the screen and see at a glance how much juice both your iPad Pro and Apple Pencil have left, right under the Notification Center’s Widget tab.
You can also use this method to check the battery level of your Apple Watch and other Bluetooth accessories paired with your iPhone.