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Shimano Di2 BT-DN110 Internal Battery Shimano Di2 BT-DN110 Internal Battery
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Di2 BT-DN110 Internal Battery

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Backorder: This item is currently not in stock but is available to purchase today as a backorder. The expected availability date shown above is our best estimate as to when it will be shipped to you, but this date is subject to change based on our receipt of this item from its vendor. Shipping in the continental US is free for all backorder items (for international orders, our customer service team will contact you when the item is available to ship). Your credit card will not be charged until your item ships (Paypal requires payment up front, but you can cancel for full refund). Anytime prior to shipment, your backorder can be cancelled by contacting our customer service team.

Shimano's Di2 BT-DN110 Internal Battery is compatible with current and previous generation Di2 groupsets. Its new chip with larger memory will unlock Synchro Shift and Bluetooth setup through Shimano's wireless E-Tube Project app, and although it has the same capacity as the previous model, updated firmware means better battery life for your Di2 drivetrain.

B-Stock - This product has one or more B-Stock units available. These units can be purchased at a discount (see option select). B-Stock units were returned from other customers and may have missing or damaged packaging materials. These units are otherwise as new. The full manufacturer warranty applies. Click Here for more information.

Mfg PartNum: IBTDN110A7 

w/ Recycle Mark

Mfg PartNum: IBTDN110A1 

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5 stars
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1 stars
You NEED this!
by DLinLV
Competitive Racer
Las Vegas

Cant do synchro shift without this battery, and its worth the upgrade just to get synchro shift. I'm not a lazy shifter but it is convenient in a race to not have to think about the gearingcross chaining as you meet hills. Just shift!

Reviewed 5/12/2017
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Powers the magical Di2
by Yelpspoon
Cycling Enthusiast
2 of 2 customers found this review helpful.

Does what it's supposed to...but the real joy of the new DN110 (vs BTN2) is the ability to allow the slimmer D-Fly replacement Di2 transmitter AND the ability to support syncroshift on Ultegra Di2 (as of 32017) with firmware upgrades (you are regularly upgrading your firmware, right?).

Reviewed 4/28/2017
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Awesome Deal
by BikeJunky2
Competitive Racer
Wenatchee, WA
0 of 1 customers found this review helpful.

Great new features over previous model.

Reviewed 1/9/2017
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Works with the bluetooth well.
by ctqtip
Cycling Enthusiast
North Haven, CT

Got this to use bluetooth with the Di2 and it is good to go.

Reviewed 7/26/2018
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Di2 System Battery component
by John42
Cycling Enthusiast
Vancouver, WA

Shimano Di2 BT-DN110 Internal Battery, Tucked into the Seat Tube, you might forget about it with its long charge, battery life.

Reviewed 9/15/2020
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Its a battery and more
by Anonymous
Daily Commuter
2 of 3 customers found this review helpful.

I replaced my older BTN2. I was upgrading my derailer and I wanted the features on the e-tube app so figured now was the time. Straightforward unplug and plug. It is not clearly stated so I was confused if the new battery alone support blue tooth or I needed to add the EW-WU111. This is not the case. The BT-DN110 WILL pair with your phone and you can use the etube app. This DOES NOT require the EW-WU111.

Also, the new batteryderailer combo supports synchro shift which I unexpectedly like very much.

Reviewed 2/1/2018
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