Wall Charger Makes HIGH PITCH NOISE

[spudman]

Just wondering if this is normal: when my wall charger is plugged in with my phone not charging it makes this excruciating high pitch sound (it comes directly from the wall charger). But then if I plug my phone into the charger, the sound goes away. Of the many phones I've had none has ever done this.

Any help would be great

[JSanders]

Help? I would advise unplugging it.

Try another, if it doesn't do it, keep the new and trash the old.

120 volts is nothing something you want to take a chance on.

[david9962000]

Yeah, change it don't take a chance be safe.

[CO_BBTechie]

In fact I'd go so far as to cut the cord so nobody down the line tries to use it.

[clevebb]

Always keep electronics unplugged when not in use. It eventually harms the transformer, not to mention wasted energy.

[spudman]

Would this be a warranty issue....I just got it about a week ago.

Thanks for the help


Help? I would advise unplugging it.

Try another, if it doesn't do it, keep the new and trash the old.

120 volts is nothing something you want to take a chance on.

[dasunst3r]

The high-pitched noise you're hearing is from the power electronics in the charger, possibly in the buck converter circuit (steps down DC voltages). I've had that happen to me on a crummy AC adapter for an all-in-one, so I vote trying to get it replaced.

[ChkUr6]

if you've had it for only one week... I'd call and get this warranty replaced. They should do this free of charge.

[blakeatl]

Wow!! Never heard of a charger making noises. Must be really bad.