I just purchased an new Aspire M5. Since I live overseas in a country with a lot of power outages, I wanted to buy an extra battery. Now I learn it is not possible for the user to replace the battery. Acer wrote: "Please be informed that the battery in the computer is built-in. It cannot be removed". Which means what? It cannot be removed by me so I have to take my PC to a technician to replace the battery and thus am unable to use a back-up battery when there is no power? This is the first time I ever heard of such a thing.... and great disappointment. Unfortunate the customer is not told of this before purchasing. Does anyone have more information about this and how the user can replace the battery himself? Thanks.