There has been some discussion on the official Supercard forum on what happens when the battery in the SC-ONE dies. Actually I believe what is being called a battery is a capacitor. In various pictures of the SC-ONE the button cell is labeled 3.3V .22F. “F” is short for Farad which is a unit of capacitance. I found the product page for the one found in every image of a SC-ONE I have seen. http://detail.china.alibaba.com/buyer/offe...%AD%B5%E7%C8%DD I Google translated it and the product is in fact a capacitor meaning that the SC-ONE will never “Die” because it will get recharged every time you use it. Note: this may not apply to the newer SC-ONEs as most images of the PCB are from 1st gen cards. Can anybody confirm on a newer card?