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  • Shimano Dura-Ace Di2 BTR2 Battery
  • Shimano Dura-Ace Di2 BTR2 Battery

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The lithium-ion battery suitable for concealed internal mounting.

  • Long battery life (up to 2000km when fully charged).
  • Internal mounting.
 
3 Questions : 3 Answers

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Compatibility

Can this battery be used with Ultegra 6780? I understand a new 3 port junction box will be needed and new wiring but unsure if will still work.
Gender: Male
4 months, 1 week ago
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Christchurch,GB
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Answer: 
This battery has been listed by Shimano as Di2 Ultegra compatible.
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4 months, 1 week ago
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ultegra 6770
Age: 18 to 24
Gender: Male
Attitude: Passionate and Obsessive
4 months, 1 week ago
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Lancashire,GB
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Answer: 
This battery is fully compatible with the Ultegra Di2 drivetrain; be aware that a longer wire may be needed from the battery to the internal junction with this new setup.
Attitude: On the up
4 months, 1 week ago
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I am already using the Dura Ace 9070 with internal cable & external battery configuration for my current road bike. I am changing to new frame which will use internal battery configuration. What other stuffs I will need besides getting the Dura Ace Di2 BTR2 battery?
Age: 35 to 44
Gender: Male
 
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3 months, 1 week ago
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Singapore,SG
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Answer: 
The BTR2 battery requires the SM-BCR2 charging cable as well (link below)
Age: 25 to 34
Gender: Male
Attitude: Just for Fun
 
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3 months ago
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