The SRAM eTap Battery is the power source for the eTap and AXS systems. The same battery is interchangeable between front and rear derailleurs.
FD Sram Rival Axs Etap 2x12s front derailleur no battery FD221219BO
Sram Rival Etap Axs 24 Speed 2*12 Road Bicycle Front Rear Derailleur Electronic Wireless Shift Groupset With Battery Charger - Bicycle Derailleur - AliExpress
SRAM Red eTap Battery Block Front/Rear Derailleur
SRAM X0 Eagle T-Type AXS Rear Derailleur - 12-Speed - Whether on the starting line or not, the X0 Eagle T-Type 12-Speed rear derailleur brings competition-tested prowess to riders who let their riding prove everything. Engineered as integrated and interdependent transmission components, the X0 T-Type derailleur mounts around the wheel axle itself, contacting the cassette directly with a first-of-its-kind Hangerless Interface.
SRAM X0 Eagle AXS T-Type 12 Speed Rear Derailleur
SRAM AXS Force 2020 - bucky rides
Product description Sram Battery Block Front/Rear Derailleur For Etap AXS/Eagle AXS Automatic translation Original description available here
Sram Battery Block Front/Rear Derailleur For Etap AXS/Eagle AXS
SRAM Rival eTap AXS Rear Derailleur 12-Speed 36t Max Medium Cage NO BATTERY
SRAM Red eTap AXS Rear Derailleur - 2023 - Components
TAKEWELL New Battery for Sram AXS/eTap,Lighter and Smaller Battery for SRAM Red eTap AXS Force Rival GX Eagle XX1,Black,2 Pcs : Sports & Outdoors
SRAM Rival Wide eTap AXS Front Derailleur - Braze-On
SRAM eTap/AXS Cover for Battery Block by antionion, Download free STL model
The epitome of grit and glamour, the XPLR rear derailleur sparkles no matter the conditions. A dedicated 1x-specific unit designed for use with a 10-44T or 10-36T cassette, it makes for an uncluttered drivetrain that takes on pavement and singletrack with equal aplomb. Wireless and proven eTap shift logic, AXS connectivity and advanced chain management mean this derailleur does exactly what you want when you need it.
SRAM Force XPLR AXS 12-Speed Rear Derailleur D2 Max 44T
SRAM RED eTap AXS Electronic 2x12-Speed Road Groupset - HRD Brake/Shif – Sierra Bicycle Supply