1Up to 20 hours requires laptop configured with Intel® Core™ i5-8565U or i7-8265U processors with 8gb RAM, 256gb SSD, low power FHD display, Windows 10 Home RS4. Windows 10/ MM14 battery life will vary depending on various factors including product model, configuration, loaded applications, features, use, wireless functionality, and power management settings. The maximum capacity of the battery will naturally decrease with time and usage. See www.bapco.com for additional details.