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Shimano BT-DN300 Di2 Battery Parts - Electronic Shifting Components

BT-DN300 Di2 Battery

$264.99

From per month with Shop Pay i or with Affirm i

Free shipping within Canada on most orders over $150

Returns accepted until January 15, 2026

Extended price matching until December 15, 2025

Please note, items may not be exactly as pictured

The new DN300 battery features the same waterproof design that Di2 users have loved for generations. Now with 3 ports, it delivers stable power to Shimano´s 12-speed road derailleurs and shifters (if a fully wired option is selected).

With the same size as its predecessor, the slim DN300 battery can be housed inside seat posts or frames ensuring a clean aesthetic. Now with 3 ports, the DN300 simplifies wiring to front and rear derailleurs, supplying stable power at all times. The third port is for riders who seek the redundancy of Shimano´s 12-speed Di2 wired option.

- Compatible with thinner next generation electric wire SD300 and systems after R9250/R8150 series
- 3 SD300 ports
- Shared fixing method with BT-DN110

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