How do I charge the WHEELTOP EDS TX/TT and how long does the battery last?

The WHEELTOP EDS TX/TT uses a proprietary magnetic charging cable—simply attach the magnetic tip to the port on the derailleur for a full charge in approximately 2 hours. The OX2.0 battery delivers roughly 24,000 shifts per charge (60+ hours of typical riding), and you can swap the battery yourself by removing 4 screws with a 2mm hex key.