Before you can turn on your Apple Vision Pro, you need to connect the battery. Even if you’re not using your Apple Vision Pro, you can leave the battery connected to allow Apple Vision Pro to sync your mail, photos, and more. Note: Apple Vision Pro automatically shuts down after 24 hours of inactivity to preserve battery (unless it’s charging). Connect the battery Insert the power cable into the power connector on the left Audio Strap, with the cord angled slightly upward.