SRAM eTap Battery – Rechargeable Power Module

The SRAM eTap Battery is the rechargeable power source for SRAM wireless electronic derailleur systems. It provides the electrical energy needed to operate eTap derailleurs and communicates with the wireless shifting network to deliver consistent, reliable shifts. This is an essential service item rather than an accessory for aesthetics. Compared to basic disposable setups, the eTap battery is designed for long life, easy removal, and straightforward charging — making it practical for riders who want dependable electronic shifting without fuss. Key Features Rechargeable battery pack for SRAM eTap derailleurs Designed for use with SRAM wireless road groupsets Simple installation and removal Built to meet SRAM performance and durability standards Compatibility & Use Notes Compatible with SRAM eTap front and rear derailleurs that accept this battery type Not compatible with mechanical derailleur systems Requires SRAM charging cradle (sold separately) Typical charge life varies with use, but regular charging is recommended to avoid low-battery shift performance Service / Ownership Context Because this is a consumable service component, keep a spare on hand if you ride often or in remote areas. Check battery status regularly through your bike’s compatible head unit or app to avoid unexpected dropouts. Proper contact cleaning and correct seating in the derailleur will help ensure reliable power delivery.