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USB-C charging law in the EU.

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CJay:

--- Quote from: Nusa on November 12, 2023, 02:49:45 am ---
--- Quote from: AVGresponding on November 11, 2023, 10:50:38 am ---
NB: You septics call 18V Li-ion batteries 20V, for some reason.

--- End quote ---

That's a marketing choice made by individual brands, not a difference in technology. Both numbers can be correct, it's just that 18V is approximately the nominal voltage of the 5 cells in series, while 20V is approximately the fully charged voltage of the 5 cells in series.

One distinction is that real power tools do not have integrated batteries (except for the super cheap tools). The batteries are sold separately from the tool, and in nearly all cases are not charged while attached to the tool. The tool itself has no charging capability. Which is by design...you want to be able to swap batteries and keep on using it.

--- End quote ---

There's some suggestion that the reason the 'standard' laptop charging voltage is 19V is because in the EU anything higher falls into a different electrical safety classification so it could also be the reason power tools over in Europe are marketed at 18V

ebastler:

--- Quote from: CJay on November 12, 2023, 05:57:41 pm ---There's some suggestion that the reason the 'standard' laptop charging voltage is 19V is because in the EU anything higher falls into a different electrical safety classification

--- End quote ---

Reference please?  ???

CJay:

--- Quote from: ebastler on November 12, 2023, 06:03:12 pm ---
--- Quote from: CJay on November 12, 2023, 05:57:41 pm ---There's some suggestion that the reason the 'standard' laptop charging voltage is 19V is because in the EU anything higher falls into a different electrical safety classification

--- End quote ---

Reference please?  ???

--- End quote ---

It's a new one on me as I only heard it 'in passing' last week or the week before and I don't have any firm references yet (it's on the 'must look into' list) which is why I wrote 'some suggestion' rather than asserting it as fact.

*added*: I listen to a lot of 'stuff' whilst working, driving etc. for background noise, it might have been the latest Ham Radio Workbench podcast (hardly an authorative source on EU regs) with W1REX

wraper:

--- Quote from: CJay on November 12, 2023, 05:57:41 pm ---There's some suggestion that the reason the 'standard' laptop charging voltage is 19V is because in the EU anything higher falls into a different electrical safety classification so it could also be the reason power tools over in Europe are marketed at 18V

--- End quote ---
What a nonsense. First of all many power tools are marketed as 20V here in EU. Secondly, such marketing has zero impact on compliance to safety regulations.
EDIT: Looking on this Worx pressure washer, it could be something about false advertising as they put MAX inside 20V. https://www.amazon.de/Operated-Hydroshot-WG633E-1-PowerShare-Accessories/dp/B0BV21M2TH

CJay:

--- Quote from: wraper on November 12, 2023, 06:19:17 pm ---
--- Quote from: CJay on November 12, 2023, 05:57:41 pm ---There's some suggestion that the reason the 'standard' laptop charging voltage is 19V is because in the EU anything higher falls into a different electrical safety classification so it could also be the reason power tools over in Europe are marketed at 18V

--- End quote ---
What a nonsense. First of all many power tools are marketed as 20V here in EU. Secondly, such marketing has zero impact on compliance to safety regulations.

--- End quote ---

It could well be complete nonsense and obviously marketing doesn't determine compliance with any standard, it was just musing on something I'd heard, as I said in reply to ebastler, from a non authorative source which is why I said "some suggestion" rather than asserting it as fact and that it was something I was intending to look into.

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