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BT-DN110-A Di2 Battery

3.6666666666666665 out of 5 stars
3 Reviews
Current price: $123.74 Original price: $164.99
25% off
Color:One Color



BT-DN110 Di2-A Battery

Refresh your Di2 shifting system with the Shimano BT-DN110-A Di2 Battery. Designed to fit stealthily in seat posts and other internal mounts, this battery is compatible with Shimano's E-Tube technology to drive precise shifts no matter the conditions.


  • A hidden battery option for Di2 drivetrains
  • Tucks neatly inside your seatpost to preserve frame lines
  • Compatible with Shimano's industry-leading E-Tube technology
  • Item #SHI00CM
Shimano Di2, [charger] SM-BCR2
3 washers, c clip, battery mount
Claimed Weight
1.8oz (50g)
Manufacturer Warranty
2 years

Overall Rating

5 based on 3 ratings

Review Summary

1 Stars - 0 reviews
2 Stars - 0 reviews
3 Stars - 0 reviews
4 Stars - 0 reviews
5 Stars - 1 reviews

What do you think about this product?


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5 out of 5 stars

April 21, 2024

Easy swap-out and upgrade

I've used it several times

After 7 years it was time to repalce my battery. Shipping was fast. The BT-DN100-A also provided the upgrade to allow me to add the wireless module as well. All was seamless.

5 out of 5 stars

June 27, 2021

Works really well on the long haul

I've put it through the wringer

On my road bike, I have a Shimano Alfine internal gear hub, 11 speed for a 1 x 11 setup. I got the Di2 motorized shifter for it and use this battery to do the shifting. After some rides around my home for most of a summer, I rode this bike along the Pacific Coast from Canada to Mexico in the fall of 2019, immediately pre-covid. The shifting and charging were flawless. Indicator lighting works properly, and only once did I run out of juice so was locked into a gear with no means to change it. I'm thinking about 7 to 10 thousand shifts per charge. I have a front dynamo hub and was able to charge the Di2 battery while riding for the rest of the day and all worked out just fine. Good system, Shimano.

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Originally reviewed on Backcountry.com

1 out of 5 stars

July 16, 2020

Battery Is DEAD!

I finally got my bike built and plugged in the battery and to my surprise my brand new Di2 system is DEAD! Shouldn't there be at least SOME charge in a brand new battery?? I hope it's only a charge issue and this battery isn't a dud!!!


Originally reviewed on Backcountry.com