Replacement battery for eTAP and AXS eTAP derailleurs.
- eTap / AXS batteries are literally a snap to remove and charge
- Front and rear derailleur batteries are interchangeable
- Charger sold separately, connects via USB power source (or can be paired with a A/C-USB adapter
- Up to 1000 kilometers of riding per charge
- Full charge takes 45 min