• Just got my first internal Di2 from a fellow forumite and it didn't come with a charger. Do I really need the £70 Shimano one? Or will anything that gives the right amps/volts/gigawatts work?

    And what about the d-fly thing to link it to my Garmin? Is that redundant now there's an app? Although I'm struggling to think how that works...

  • You need the shimano charger. It should have really come with the charger. Unless it explicitly said it didn't.

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