Thread: Di2 Front Derailleur Not Shifting
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Old 10-23-21, 02:52 PM
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Iride01 
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Bikes: Tarmac Disc Comp Di2 - 2020

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You say your LED's light up on the junction box, but how they light up and flash or don't flash will tell you various things. One being what the state of charge it thinks your battery is.

Is this an external battery that you charge off the bike?
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