• Finally tested with another shifter. Its 100% the left shifter thats draining. I can do two things from here:
    -Buy a new LH shifter
    -3D print a bar-end plug that has a switch glued into it, spliced into the Di2 cable that goes to the left shifter. This way I can disconnect the left shifter without much hassle when I get back from my rides.

    Sigh...

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