About SRAM eTap AXS BatteryThe 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. FeaturesCharges in 60 minutes or less Lightweight (24g) and easy to transport Same battery design for all AXS™ components and original SRAM RED® eTap® Up to 1000 kilometers of riding per charge Model ID: EP-EAC-BAT-A1 About SRAMFounded in 1987, SRAM (an acronym of the 3 founders names, Scott, Ray and Sam) is a privately owned bicycle component manufacturer located in Chicago. They're known for developing many of the inovative technologies used in bikes today including ETAP wireless electric shifting, Grip Shift, dedicated single chain ring drivetrains, narrow wide chainrings and more. Sram also own bicycle component brands Rockshox, Quarq, Zipp and Truvativ.