The battery lifetime of the Bose QuietComfort Ultra Headphones is up to 24 hours of continuous playback in Quiet Mode (full noise cancellation) without Immersive Audio. With Immersive Audio on, the battery life is up to 18 hours.

Additionally, a quick 15-minute charge provides up to 2.5 hours of playback time without Immersive Audio, and up to 2 hours with Immersive Audio.