Purchased a top of the line version of this laptop (2TB SSD, 64 GB RAM, i9 processor) directly from Dell and straight from the factory it would do a hard shutdown every single time the battery reached 75%. After several sessions with them remoting into my computer and me installing dozens of firmware updates they had me ship it back to them. They replaced the battery and never checked out the actual problem because it still existed. Terrible, terrible, terrible customer support. They couldn't even be bothered to verify that the problem was corrected before they sent it back to me unfixed. Ultimately had to completely reinstall Windows to fix problem--after a month of them not fixing it.