The active use portion consists of (1) a web browsing test accessing 8 popular websites over multiple open tabs, (2) a productivity test utilising Microsoft Word, PowerPoint, Excel and Outlook, and (3) a portion of time with the device in use with idle applications.

Testing consisted of full battery discharge with a mixture of active use and modern standby. Testing conducted by Microsoft in April 2020 using preproduction software and preproduction configurations of Surface Book 3 13.5” Intel® Core™ i5, 256GB, 8 GB RAM. Surface Book 3 for Business 13.5” connected to keyboard base: Up to 15.5 hours of battery life based on typical Surface device usage.Available storage is subject to change based on system software and updates and apps usage. System software and updates use significant storage space.Restrictions apply. See Surface for Business warranty page for AES terms and conditions and list of supported markets. Advanced Exchange Service is available at no additional charge with Surface Book 3 for Business, Surface Go 2 for Business, Surface Pro 7 for Business, Surface Pro X for Business, Surface Laptop 3 for Business, Surface Pro 6 for Business, and Surface Laptop 2 for Business. Only available in supported markets.Microsoft 365 E5 subscription required.

Certain features require specific hardware, see Windows 11 specifications. Certain features require specific hardware (see Windows 11 Specifications).ġUpgrade rollout plan is being finalized and is scheduled to begin late in 2021 and continue into 2022.

Surface book detachable