How long do the eTap® 2x11 shifter batteries last? November 26, 2019 16:55 Updated The shifter batteries will last two years under normal use (estimated at 15 riding hours per week). Related articles How do I know when to charge the eTap® 2x11 derailleur or replace the shifter batteries? What type of batteries do the new SRAM RED and Force eTap AXS™ shift-brake levers require? How long does it take to remove 2x11 eTap® shifter batteries? What happens when an eTap® 2x11 battery is low? Will the shifts slow down? Will the shifter work intermittently? Are the eTap® shifter batteries rechargeable? Comments 0 comments Article is closed for comments.