[bmwroadsterca]

None of this has anything to do with the CAN-bus. A popular misconception that has led to the misuse of the term.

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[bmwroadsterca]

For a better understanding of your bike's electrical system read the first two posts here:

https://forums.bmwmoa.org/showthread.php?103502-The-ZFE-%96-Charger-Handshake

 

[bmwroadsterca]

Best get in contact with BMW Motorrad and explain to them the apparent error of their ways :-

BMW Motorrad Battery Charger PLUS. CAN-Bus and Lithium-Ion Compatible

BMW Motorrad Battery Charger PLUS. CAN-Bus and Lithium-Ion Compatible High-quality BMW Motorrad Plus battery charger can handle conventional lead-acid wet batteries and maintenance-free batteries (gel/AGM) and is also designed for fully automatic, microprocessor-controlled charging and...

cotswoldbmwmotorradonline.co.uk

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Yes vendors are largely responsible for the incorrect usage of the term. As explained in the post that I linked to it was a poor choice of identifying whether the electrical management was being done by a ZFE by citing the CAN-bus. For a better understanding of what the CAN-bus actually is check out the Wikipedia article on the subject.

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[bmwroadsterca]

What is important however, is the time and effort that the OP took to write up about his experience for the benefit of others. Seems a shame to be critical on terminology used given the effort he put in.

It is also important that those reading the post and wanting to do further research or reading be alerted to the factual errors lest they be led down the rabbit hole of misinformation. Looking for related material that uses the correct term "ZFE" is much more likely to yield accurate and useful results as those using the correct terms are likely to be more knowledgable.