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External mount for Internal battery

If you cannot place the BT-DN110 Internal Battery in your bike's frame you have two options: either use the BM-DN100 external battery mount and the SM-BTR1 battery, or use the SM-BTC1 external mount for the internal battery. In most cases using the SM-BTC1 is the better option. It has several advantages:

  • You can use it with both SM-BTR2 (previous internal battery) and the newer BT-DN110 battery
  • It uses a low profile design and attaches to a frame's bottle cage mounts
  • You can use SM-BCR2 to charge the bike instead of SM-BCR1

The last point is important. The SM-BCR2 also lets you connect your bike to a windows computer to change settings. The SM-BCR1 does not.

It features 6 t-Tube ports with a cable organizer - it functions as a Junction B.

SM-BTC1 battery mount

Details & specifications

Shimano model codeSM-BTC1
Shimano model nameDi2 Battery case
Weight0 g
SeriesXTR M9050
Downloads XTR M9050 Manual
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Shopping links

Are you looking to upgrade your bike using this component? We've added shoppings links to this component's Amazon and eBay pages. Click the images below to view the Amazon product page or eBay search results.

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