Is there a different battery for the new SRAM RED eTap AXS 36T Max rear derailleur? October 16, 2020 21:38 No, the derailleur uses the same battery design for all AXS components and original SRAM RED eTap. Related articles Are the frame fit specs for the SRAM RED eTap AXS 36T Max rear derailleur different than the existing SRAM RED eTap AXS derailleur? Where can I find the frame fit specs? How does the new Eagle AXS™ chain lifespan compare to SRAM’s current XX1 Eagle™ chain? Do I need to do anything different when washing a bike with SRAM RED eTap? What are Enhanced Shift Mode and Multishift, and how do I enable them using the AXS Mobile App? Comments 0 comments Article is closed for comments.