The SRAM battery is the power source for eTap® or AXS™ components. The same power unit is interchangeable between front and rear eTap® AXS™ derailleurs, Eagle AXS™ derailleurs, and the RockShox Reverb AXS™ seatpost.
Since the batteries are universal, buying 1 or 2 extras means you are never caught with a dead battery 5 minutes before a ride. The included cover plate protects the contact points during transport or storage and has a selector switch so you know the charge state of all your batteries. Even if you do lose power on a ride, simply swap them around to run the rear derailleur and make it home.
Up to 1000 kilometers of riding per charge
Charges in 60 minutes or less
Lightweight (24g) and easy to transport
Same battery design for all AXS™ components and original SRAM RED® eTap®