Description 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. Charges in 60 minutes or less Lightweight (24g) and easy to transport Same battery design for all AXS™ components and original SRAM RED® eTap®
