Based on internal testing in Dell labs, running the system on idle, using an Alienware m15 equipped with the optional 90Whr battery as well as the Intel Core i5 processor, NVIDIA GeForce GTX 1050 Ti graphics, 256GB SSD, and FHD 60Hz display. Actual battery life may be significantly less than the test results and varies depending on product configuration and use, software, usage, operating conditions, power management settings and other factors. Maximum battery life will decrease with time.