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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

                                              Shimano BT-DN300 Di2 Battery

                                              SKU: 22445180
                                              • MODEL NO _ BT-DN300
                                                SERIES _ ULTEGRA R8100 Series
                                                Average weight _ 52
                                                Type _ Built-in battery
                                                Chemistry _ Li-Ion
                                                Rated voltage (V) _ 7.4
                                                Rated capacity (Ah) _ 0.5
                                                Rated capacity (Wh) _ 3.7
                                                Compatible charger _ RD-R9250, RD-R8150, RD-R7150
                                                Master unit _ ✔
                                                Firmware update by E-TUBE PROJECT _ ✔
                                                SD50 port (pcs) _ 0
                                                SD300 port (pcs) _ 3
                                                SD50 connector (pcs) _ 0
                                                SD300 connector (pcs) _ 0

                                              • -If you are not 100% satisfied with your purchase, you can return the product and we'll refund the full cost of the item minus shipping costs or exchange the product for another one, be it similar or not.

                                                -You can return a product for up to 30 days from the date you purchased it.

                                                -Any product you return must be in the same condition you received it and in the original packaging. Please keep the receipt.

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