Enter your serial number on the Lenovo Support Parts Page to find the exact Field Replacement Unit (FRU) number.
Open Windows PowerShell and type powercfg /batteryreport . The generated file lists the Design Capacity and the Manufacturer/Serial Number . lenovo x1 carbon battery buy
Remove the bottom cover to find the label directly on the battery. 2. Battery Compatibility by Generation Enter your serial number on the Lenovo Support