If a power bank is making noise when being charged, it may indicate a potential issue or malfunction. Here are a few possible reasons and suggestions on what you can do:
Coil Whine: Some power banks may exhibit a phenomenon called "coil whine," which is a high-pitched noise produced by the electromagnetic coils inside the device.
It's generally harmless, but it can be annoying. If the noise is not too loud and the power bank functions properly, it might be normal behavior.
Faulty Components: A more concerning possibility is that there is a faulty component within the power bank.
It could be a sign of a malfunctioning circuit or a problem with the battery. In this case, it's advisable to stop using the power bank and contact the manufacturer for further assistance.
Overheating: Excessive heat during charging can sometimes lead to unusual noises. Check if the power bank is getting excessively hot while charging.
If it is, this could indicate a problem with the battery or charging circuit. Overheating can be a safety concern, and you should discontinue use immediately.
Charging Cable or Adapter: The noise might not be coming from the power bank itself but from the charging cable or adapter.
Try using a different cable and adapter to see if the noise persists. If the noise goes away, it might indicate a problem with the original cable or adapter.
Contact the Manufacturer: If the power bank is still under warranty or you are unsure about the cause of the noise, it's recommended to contact the manufacturer for support.
They can provide guidance on whether the noise is normal or if there's a potential issue that needs addressing.
Avoid using damaged or malfunctioning power banks to prevent potential hazards.
Top comments (2)
Nothing's wrong - you're most likely hearing the noise made by little gremlins pedaling hard to charge your power bank.
Thanks for your feedback, Val.
May I ask if you have worked with power banks or can talk some more about them? Thanks