AXS Battery

Brand: SRAM

Removable battery shared across the whole SRAM eTap and AXS ecosystem. SRAM lists it as interchangeable between front derailleur, rear derailleur, Eagle AXS derailleurs and the RockShox Reverb AXS seatpost: one spare battery covers any component on the bike. SRAM quotes 24 g, a full charge in an hour or less, and roughly 60 h of run time on road derailleurs or a seatpost, 25 h in mountain use.