Unlike Microsoft's Surface Pen that relies on a user-replaceable AAAA battery, the Apple Pencil has a non-replaceable and rechargeable 0.329 Wh Li-ion battery, which maintains the trend of Apple for not having access to the hardware of the devices.
Even though it has only a fifth of an iPhone 6s battery, it can win 30 minutes in runtime value only with 15 seconds fast charge via the iPad Pro's Lightning port. The standard fully charged duration of your Apple Pencil is approximately 12 hours.
However, the accessory itself lacks a battery status indicator that will support the user with instant visibility of their status. In this tutorial, you will learn how to easily check the battery status of your Apple Pencil directly on your iPad Pro.
To check the battery status of your Apple Pencil, you will have to enable a new battery widget for iOS 9 on your iPhone or iPad Pro:
- Access the Notification Center swiping down from the top of your iPad Pro screen.
- Switch to the Today tab, scroll to the bottom and press the Edit button.
- You should now see a list of widgets available on your device. Click on the plus sign next to "Batteries" to activate the widget. You can optionally reorder the widgets on this screen, if you wish.
- Press on Done to complete.
Now you can easily see how much battery your Apple Pencil has, right in the notification center. Just swipe down from the top of the screen and take a look at the widgets on your iPad Pro and Apple Pencil.