PRO Di2 Internal Battery Holder for Seatpost
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PRO Di2 Internal Battery Holder for Seatpost
PRO Di2 Internal Battery Holder for Seatpost Info
Routing a Shimano Di2 battery inside a seatpost keeps your cockpit clean and your wiring out of sight — the PRO Di2 Internal Battery Holder for Seatpost is the hardware that makes it work. The mount is a two-piece cylindrical shell that holds the battery securely within the post, with the cable port oriented downward for a clean exit. PRO includes a removal tool, so retrieving the battery when you need to charge or swap it doesn't require improvisation.
Two size variants cover the most common seatpost diameters — 27.2mm–28.6mm and 30.9mm–31.6mm — making the holder compatible with a wide range of round seatposts beyond PRO's own line. Installation is straightforward: seat the battery in the two-piece holder, feed it into the post cable-end first, and the mount holds it in place without rattling or shifting.
PRO Di2 Internal Battery Holder Specs at a Glance
- Compatibility: Shimano Di2 internal battery
- Sizes available: 27.2mm–28.6mm and 30.9mm–31.6mm seatpost diameter
- Mount design: Two-piece cylindrical shell with cable-port-down orientation
- Includes: Battery removal tool
- Color: Black
