Do you hear noise from the Huawei Mate 9 charger when it is NOT charging?

[rayraymond]

I got the phone for awhile,
the phone itself is running very well.

but i have another concern,
i start to hear the super charger when it is idle (not charging but plugged into the wall)

when it is charging, it is completely silence.

Do you also hear the noise from the charger too?

 

[RR-99]

Can't say I have noticed that. But I always turn chargers off when not in use. It's safer.

 

[Governa]

I sit close to one at night, in total silence, and I can't say I've ever heard any noise coming from it.

Sent from my MHA-L29 using XDA Labs

 

[roybr]

Yeah, I heard it too. I have two chargers and both do the noise.

 

[Governa]

What kind of a noise? Like a humming sound? Electrical buzzing?

Sent from my MHA-L29 using XDA Labs

 

[Badonga]

Better call them Ghost Buster folks.

On a more serious note, never experienced anything like it. Turn off your charger when you're not using. Better charger life longevity.

 

[aknotts415]

This has been a thing with LG chargers for years. For some reason they just hum or buzz.

 

[Governa]

I wouldn't worry about longevity tbh. Any good quality charger will largely outlast the device it hooks to. Heck my 1995 Motorola Flare charger still works.



If the buzzing gets on your nerves you can always get one of those cheap socket adapters with an on/off switch (see attached).

Sent from my MHA-L29 using XDA Labs

 

[Sammath]

I used to get that on my old Samsung chargers. Never heard anything with my mate 9 charger tho. I wouldn't worry about it if I were you.

 

[rayraymond]

Thank you for the input for using a switch to turn it off when not using...

but the most important point is, i have a friend who also own a Mate 9, his charger is dead silence when charging or idle.

The sound is more or less like buzz (but very little sound)

 

[CodeRR]

Thank you for the input for using a switch to turn it off when not using...

but the most important point is, i have a friend who also own a Mate 9, his charger is dead silence when charging or idle.

The sound is more or less like buzz (but very little sound)

I can confirm your charger noises. Wired thing. Better unplug the charger, because noise means it is burning up energy!

 

[Notchr302]

Not to be dumb but is it your outlet? Have you tried a different one? Mine is completely silent

 

[samsmalls]

I got the phone for awhile,
the phone itself is running very well.

but i have another concern,
i start to hear the super charger when it is idle (not charging but plugged into the wall)

when it is charging, it is completely silence.

Do you also hear the noise from the charger too?

Notice this as well one night while reading on the phone in bed. Mine does it with or without charging. I've also experienced this with a Sony adapter, and Samsung. I have a few devices plugged into a 8 prong switched grounded outlet... I just flip the switch off in the morning and this this actually lasts until bedtime??

 

[htcdesire-hd]

I got the phone for awhile,
the phone itself is running very well.

but i have another concern,
i start to hear the super charger when it is idle (not charging but plugged into the wall)

when it is charging, it is completely silence.

Do you also hear the noise from the charger too?

Phone chargers are step-down switching power supplies.
They are called switching power supplies, because electrical current flowing into coils or capacitors is always switched on and off to get a desired amount of electrical energy saved inside this energy storages to get lower voltage than the power line. They are verry efficient and much smaller than conventional ones.
Because of the current switching the plates of the capacitor or the windings of the coil can vibrate and cause this sounds.
It depends on the components if there is a sound or not and can vary from batch to batch.
So no worry if the supply creates silent noise, its working fully, only different components are used! (as long as it is no super cheap china power supply, they could be very dangerous)
And i think the power supply lives as long as the phone. Computer or TV power supplys are always plugged in too and they have the same technology.
But i always unplug the power supply to save enegy