"CMOS battery in SP4"に関する回答I have taken a dozen of these units apart and never found a coin battery. These Surfaces are made not to be taken apart. The newer models have only a motherboard and the batteries below the screen. The SSD is on the motherboard and can not be remove. Unlike the older ones. The older models had a removable SSD, the newer model everything is on a motherboard. Unless you have a new replacement MB it is not worth anyone trouble to open the Surface. If your told it can be done then then your going to pay big dollars to have it done. Just look at your electronic watch.