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@motoko
Technical diagnostics question here:
Internal Di2 Ultegra
Rode the bike on Saturday and Sunday. Checked battery level on Saturday and it was still green.
Yesterday went to change gear and nothing. Can't get the junction box a to light up by either pressing shifters or crash reset button. When I plug in the charger the light does not illuminate on the charger or the junction box.
Took the battery out of the seatpost and checked it with a multimeter was about 2V. Left the bike plugged in again to charge for a couple hours, still no light on junction box or charger. Checked battery again with multimeter, 0.2V
Thought that something might be loose in the internal junction box b, so plugged battery directly into junction box a instead of one of the shifters and tried to charge. No luck.
My guess is the battery is dud and system doesn't have power to recognise charger or something. I don't have a windows PC at home, so can't use the e tube software yet.
Anyone with di2 sleuthing skills seen anything similar or have any ideas/