AXS and eTap Battery

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.

Battery comes with AXS Battery Terminal Cover to keep the battery protected if you're keeping a spare in your pocket or bag.