Shimano BT-DN300 Built-In Di2 Battery 3-Port

- Squarebox Cycles is an Official Dealer for Shimano in Singapore.
- All Shimano products sold by us are guaranteed genuine, brand new and fresh stock.
- Installation available in-store (fees apply).

Power your Shimano Di2 12-speed groupset with the BT‐DN300 internal battery — the next-generation upgrade for R8100 Ultegra and R9200 Dura‐Ace systems. Slim and compact, it's designed to be mounted inside seat posts or downtubes for a fully integrated, clean electronic shifting setup.

Model: BT-DN300
Built-in internal Di2 battery compatible with R8100/R9200 and beyond
Three ports for SD300 wiring (supports redundancy or multiple components)
Slim profile easily fits inside seat posts or frame cavities
Waterproof and durable, designed for elite-level shifting systems
Approximate
weight: ~52 g
Upgraded from earlier BT‐DN110 with no external connectors