The watch charging module has been certified to meet Apple's Made for Watch (MFW) standards and performs identically to Apple's original charger. Rest assured, if your Apple Watch displays 0W during charging, this is normal behavior. It is part of Apple's system policy designed to protect the battery and extend its lifespan. The charging process remains safe, stable, and effective at all times, without affecting device performance.

If you have any questions, please contact Anker Customer Support for further assistance.