Shimano BT-DN300 Built-In Type Di2 Battery [SD300 Type]

The Shimano BT-DN300 Built-In Type Di2 Battery is engineered to deliver consistent and reliable power to Shimano's latest 12-speed Di2 systems. Its internal mounting design ensures a clean look and seamless integration with modern road bikes.

Three-Port Configuration for Flexible Wiring: With three SD300 ports, the BT-DN300 makes it easier to wire both front and rear derailleurs while also supporting a fully wired option. This added flexibility allows riders to configure their Di2 setup for maximum efficiency or redundancy.

Waterproof and Durable Design: Built with the same waterproofing Shimano users have trusted for years, this battery maintains performance even in challenging weather conditions. It ensures long-term reliability and durability for high-performance road riding.

Slim Profile for Internal Mounting: Sharing the same size and fixing method as the previous BT-DN110 model, the DN300 fits neatly inside seatposts or frames. Its compact shape supports a clean aesthetic and protects the battery from external wear.

The Shimano BT-DN300 is fully compatible with the thinner SD300 electric wires and is specifically designed for use with systems from the R9250 and R8150 series onward.

We ship across India. Shipping is free on orders above ₹2,000, and ₹99 is charged on orders below ₹2,000. Cash on Delivery is available for orders up to ₹20,000, with additional COD charges based on order value. Most orders are delivered within 3–6 working days, though delays may occasionally occur. Please note that most Shimano products may take longer to ship. View full shipping policy.

Returns can be initiated within 7 days of delivery. Items must be unused, in original condition, and returned with all tags and packaging intact. Returns are available only on select categories such as apparel, helmets, jerseys, gloves, and similar items. Wetsuits and products discounted above 5% are not eligible for return.

Returns are not accepted for compatibility-related issues unless the product description on our website was incorrect. Return shipping must be arranged by the customer, as pickup is not available.

For eligible returns, you can choose an exchange, store credit, or a monetary refund. Refunds are processed after deduction of applicable shipping and transaction charges. Order cancellations are only possible before the order is processed. View full Return & Refund Policy.