Are 11-speed SRAM RED eTap™ derailleur batteries compatible with Eagle AXS™ and SRAM RED eTap AXS™ derailleurs? February 06, 2019 16:05 Yes. Both groups use the same batteries. Related articles Are 11-speed SRAM RED eTap derailleur batteries compatible with SRAM RED and Force eTap AXS derailleurs? What type of batteries do the new Eagle AXS™ controller require? How do you pronounce the AXS™ portion of the groupset name? What is the max cog size that is compatible with Eagle AXS™ rear derailleurs? What type of batteries do the new SRAM RED and Force eTap AXS™ shift-brake levers require? Comments 0 comments Article is closed for comments.