• Last proper ride I noticed a few occasions where an upshift was missed, but a double upshift worked and I could shift down to the gear I actually wanted.

    Should have checked the battery levels.

    Rode to the shops this morning, then later set out to do a proper ride, only to find myself with a dead system. No LED when I pressed the button on junction A (EW90-B). Conceded that the gear I was stuck in was to low for a 60 miler and returned home.

    Connected my BCR2 charger, no LEDs on that either.

    Downloaded the E-Tube Project software and found that the system wasn't recognising the battery. Swapped the EW90-B for an SC-MT800 I've got for another project, and used a different cable, but still no battery detected.

    I've re-connected it to the computer for a slow charge, but what are my cheaper options for a cylindrical Di2 battery nowadays? Don't have any wireless modules yet, so BTR2 would be ok.

  • BTR2s are pretty hard to find these days. Best I could find recently was the BT-DN110 at Decathlon for £95 a pop.

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