Now I remember why I didn't do all of this. In order to use the BCR2 I needed to change batteries (I still have the SM-BTR1 and SM-BCR1 combo). I have the EW-90B Junction A so it is just the BT-DN110 and SM-BCR2 that would get me to current PC compatibility. $200 wasn't worth it to me then, and I am not sure it still isn't now.

[MENTION=3379]MikeOK[/MENTION] If that Motobecane has the internal seat post battery BT-DN110 and you already have the SM-BCR2 charger to charge it, then you simply don't need the SM-PCE1. Like [MENTION=388729]Marcus_Ti[/MENTION] said, the SM-PCE1 is only really useful for shop mechanics that need to run diagnostics on each component separately.

I had to buy the SM-PCE1 at the time since I have the 6700 series of Ultegra Di2 and there was no EW-90 at the time and no internal battery. The SM-PCE1 was the only choice at that time.

Thought, Actually I don't think I need the battery if the SM-BTR1 will charge with the SM-BCR2 then all I need is that Charger/USB? Maybe?