The Smartcom controller uses a CR2032 coin cell battery. Please see the SmartCom3 Control Panel Installation and User Manual (https://www.reznor.co.uk/wp-content/uploads/2023/12/2a.-704020-SC3ML-Installation-and-Operating-Manual-v3a-Ben-EN-0416-A4F-GBSCOM1200416-1.pdf) for more information.
What type of batteries does the Smartcom controller use?
Information on Reznor's range of control panels