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skinny
Saffronspokes
My Di2 appears to be completely flat today. It was fine on the ride into work (only took the nice bike as was doing some laps post work). However, it now doesn't shift and no lights come on at all in the junction box.
Is the battery just flat or something more sinister? I thought I'd get some sort of warning that the charge was running out. It was absolutely fine on the ride in this morning.