Shimano Dura-Ace Di2 DN300 Battery

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keyboard_arrow_right Description

Shimano Dura-Ace Di2 DN300 Battery


12 Speed Di2 internal battery with 3 ports 

The BT-DN300 battery connects to the rest of the Di2 system using the EW-SD300 wires.

Backward compatible with the You would have to use the EW-AD305 adapter to connect it to older components. 

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