Surface Laptop 4 13.5 AMD Ryzen 5 Microsoft Surface Edition processor 8 GB RAM

Up to 19 hours of battery life based on typical Surface device usage

Testing conducted by Microsoft in February 2021 using preproduction software and preproduction 13.5 AMDRyzen5 Microsoft SurfaceEdition processor, 8GB RAM device. Testing consisted of full batterydischargewith a mixture of active use and modern standby. The active use portion consists of (1) a web browsing test accessing 8 popular websites over multiple open tabs, (2) a productivity test utilizing Microsoft Word, PowerPoint, Excel, and Outlook, and (3) a portion of time with the device in use with idle applications. All settingsweredefault except screen brightness was set to 150nits with Auto-Brightness disabled.Wi-Fi was connected toanetwork.Battery life varies significantly with settings,usage,and other factors.

Surface Laptop 4 15 AMD Ryzen 7 Microsoft Surface Edition processor 8 GB RAM

Up to 17.5 hours of battery life based on typical Surface device usage

Testing conducted by Microsoft in February 2021 using preproduction software and preproduction 15 AMD Ryzen 7 Microsoft Surface Edition processor, 8GB RAM device. Testing consisted of full battery discharge with a mixture of active use and modern standby. The active use portion consists of (1) a web browsing test accessing 8 popular websites over multiple open tabs, (2) a productivity test utilizing Microsoft Word, PowerPoint, Excel and Outlook, and (3) a portion of time with the device in use with idle applications. All settings were default except screen brightness was set to 150nits with Auto-Brightness disabled. Wi-Fi was connected to a network. Battery life varies significantly with settings, usage and other factors.

Surface Laptop 4 13.5 Intel Core i5 512GB, 8 GB RAM

Up to 17 hours of battery life based on typical Surface device usage

Testing conducted by Microsoft in February 2021 using preproduction software and preproduction 13.5 Intel Core i5, 512GB, 8 GB RAM device. Testing consisted of full battery discharge with a mixture of active use and modern standby. The active use portion consists of (1) a web browsing test accessing 8 popular websites over multiple open tabs, (2) a productivity test utilizing Microsoft Word, PowerPoint, Excel and Outlook, and (3) a portion of time with the device in use with idle applications. All settings were default except screen brightness was set to 150nits with Auto-Brightness disabled. Wi-Fi was connected to a network. Battery life varies significantly with settings, usage and other factors.

Surface Laptop 4 15 Intel Core i7 512GB, 16 GB RAM

Up to 16.5 hours of battery life based on typical Surface device usage

Testing conducted by Microsoft in February 2021 using preproduction software and preproduction 15 Intel Core i7, 512GB, 16 GB RAM device. Testing consisted of full battery discharge with a mixture of active use and modern standby. The active use portion consists of (1) a web browsing test accessing 8 popular websites over multiple open tabs, (2) a productivity test utilizing Microsoft Word, PowerPoint, Excel, and Outlook, and (3) a portion of time with the device in use with idle applications. All settings were default except screen brightness was set to 150nits with Auto-Brightness disabled. Wi-Fi was connected to a network. Battery life varies significantly with settings, usage and other factors.

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Surface battery testing and estimated performance