SRAM eTap/AXS Battery

Reliable, lightweight power source for your SRAM electronic drivetrain components.

The SRAM eTap/AXS Battery is the official rechargeable lithium-ion battery designed to keep your SRAM eTap® and AXS™ electronic shifting system charged and ready, ride after ride. Compact and universally compatible across SRAM’s electronic ecosystem, it ensures consistent performance wherever your cycling journey takes you.

Fuel Your Shifting System

• Universal Compatibility: Works with all SRAM eTap and AXS components — front & rear derailleurs, Eagle AXS mountain bike drivetrains, and RockShox Reverb AXS seatposts.
• Fast Recharge: Fully replenishes in ~60 minutes, so you’re back on the road or trail quickly.
• Light & Compact: Weighs just ~24 g, making it easy to carry as a spare without weighing you down.
• Long Service Life: Capable of powering your components for roughly 1,000 km of riding per charge under normal use.

Designed for Real Riding

• Tool-Free Swap: Quickly remove and install the battery thanks to SRAM’s intuitive latch system — ideal for long rides, races, or travel without needing tools.
• Interchangeable: Uses the same battery unit between front and rear derailleurs, letting you manage power smartly if one runs low mid-ride.
• Indicator Support: Check the charge status via LED indicators on SRAM components or through the SRAM AXS app.

Who It’s For

• Road cyclists using SRAM eTap/AXS wireless drivetrains
• Gravel and mountain bikers with Eagle AXS or AXS seatpost systems
• Riders who want peace of mind with a reliable spare on long rides
• Cyclists upgrading or maintaining their electronic system

Quick Summary

Whether you’re replacing an old battery or carrying a spare for peace of mind, the SRAM eTap/AXS Battery delivers lightweight, universal, and fast-charging power for your electronic bike components — engineered for performance, convenience, and compatibility across SRAM wireless systems.