• How do I know if my Di2 charger is working, and the battery is charged?
    Yesterday I rode home on 1 gear (small front ring and small rear sprocket). Now after 2 attempts at charging the battery, it is still not any better.
    Where shall I start?
    Planning to take it for a service but won't be until next week now as all shops are 200% busy atm.

  • There's an orange light on the charger that will come on for at least a few seconds when you connect, and switch off when charged. The USB cable is the first thing to check/swap.

    (for internal battery. No idea about external)

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