How many hours of riding can I get from a fresh set of shifter batteries? November 04, 2020 21:42 Updated About 2 years depending on how much you ride/shift. Related articles What type of batteries do the new SRAM RED and Force eTap AXS™ shift-brake levers require? How do I know when to charge the eTap® 2x11 derailleur or replace the shifter batteries? Are there any auxiliary buttons on the shifters with unassigned functions that can be used to control other wireless components or perform special functions? How long do the eTap® 2x11 shifter batteries last? What type of brake pads are required for SRAM eTap AXS HRD road disc brakes? Comments 0 comments Article is closed for comments.