One CR2032 per shifter. The same as the previous RED eTap™ groupset.
See the shifter and controller battery replacement procedure here.
Articles in this section
- What type of batteries do eTap AXS shift-brake levers require?
- How many hours of riding can I get from a fresh set of shifter batteries?
- How do I charge eTap AXS derailleur batteries?
- How long does it take to charge eTap AXS derailleur batteries?
- How should I store my AXS equipped bike and derailleur batteries during the off-season or when the bike is not in use for 2-3 months or more?
- How far can I ride on a fully charged eTap AXS derailleur battery?
- How long do eTap AXS shifter batteries last?
- Are SRAM AXS controller (shifter) batteries replaceable?
- Are the front and rear derailleur batteries interchangeable?
- What happens when an eTap battery is low? Will the shifts slow down? Will the shifter work intermittently?