I received a faulty device. After multiple attempts to update to the latest version of Mac OS, I noticed that it wouldn’t work and that this Mac also appears to have a full battery even after hours of use. I’m not sure what they did to the battery. It says that it’s at 100%capacity, but even in the best-case scenario, that can’t be possible for a 4 year old computer. They didn’t include a charger either, but that’s the least of my worries. Going to  repurchase  from a more trusted source. Hoping for a better result.(Update) The MacBook stopped being able to hold a charge . It was so exhausting trying to get this thing to work. I really was so happy to receive this. It looked pretty good and I was so hyped to see a perfect battery. I should’ve known something was up when that status never changed or when the update to the latest OS would not complete. I kept trying for hours and hours. I really still have no clue what was wrong with this computer. The replacement is on its way from a different seller. I am hoping for a better result. 😞