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Continue ShoppingShimano Dt-Dn 110 E-Tube Di2 Battery
The rechargeable lithium-ion battery BT-DN110 is mounted internally in the frame or seat post for a clean look. Charging is easy with the BT-DN110 battery charger that connects via the SM-EW90 junction box, so you don't have to worry about removing your seatpost for charging. Requires BT-DN110 battery charger sold separately.
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