We have developed a docking station product which charges multiple devices simultaneously, and currently ships with a 5V, 3A barrel jack adaptor. We are looking to move this over to USB power, and have recorded maximum current draw with a full complement of devices around 1.8A (quickly returning to 1.5A, which I understand is the minimum required for a USB Dedicated Charging Port).
The factory are telling me that if exceeding 1A it will not pass CE certification, but I can find no reference to this in any of the documentation I have read, so my question is:
- Is the factory correct? If so, could anyone refer me to a standard which states this?
- Given the prevalence of USB supplies with 2A or greater rating, would we be violating any rules by simply stating in the manual that it must be connected to a supply which can provide 2A or greater?
Thanks in advance.