Yes, they are! Our SRAM AXS and eTap AXS shifters, as well as our Eagle AXS controllers, use one CR2032 coin-type battery in each. Below are a couple of resources on how to replace them:
- Road AXS Shifter Battery Replacement
- MTB AXS Controller Battery Replacement
Please note that batteries with a bitter child-safe coating can cause interference between the battery and terminal, resulting in potential performance issues.