TANDY 1000 RLX/B (250-1452/53/B) Battery Faxback Doc. # 1347 CMOS RAM Battery (23-162) The SmartWatch is a battery-backed memory chip that contains the time and date information. You will occasionally need to replace the SmartWatch (CMOS RAM) battery. The CMOS RAM battery should last at least three years with normal use. When it fails, the time and date information is displayed inaccurately. Note: Refer to Faxback Doc. # 1317 for Main Logic Board Layout. Follow these steps if you choose to replace the battery yourself: Note: Be sure that the Power to the Computer is turned and disconnected before you begin this process. 1. Gently lift the battery clip. 2. Remove the old battery from the battery holder. 3. Place the new battery in the battery holder. Be sure to position the battery with the positive side (+) up. 4. Run the Setup Utility to enter the correct date and time. Note: Refer to Faxback Doc. # 1345 for instructions on using the SETUPRLX Utility. WARNING: Improper handling of this special lithium battery can be hazardous. Never recharge, disassemble, or heat the battery above 100`C (212`F). Never solder directly to the battery or expose the contents of the battery to water.