Battery life varies significantly with settings, usage and other factors. All settings were default except screen brightness was set to 150 nits with Auto-Brightness and Adaptive Color disabled. The active use portion consists of (1) a web browsing test accessing eight popular websites over multiple open tabs, (2) a productivity test utilizing Microsoft Word, PowerPoint, Excel, OneNote 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 August 2022 using preproduction software and preproduction SQ® 3, 128/256/512GB, 8/16GB RAM device. Up to 19 hours of battery life based on typical Surface device usage.
Testing conducted by Microsoft in August 2022 using preproduction software and preproduction Intel®12th Gen Core™ i5, 256GB, 8GB RAM device. Up to 15.5 hours of battery life based on typical Surface device usage. See aka.ms/SurfaceBatteryPerformance for details.