Is my 18650 Charger faulty?

[Danny Shipley]

When ever i put my ear to the charger i can hear like a screaming sound
Its quiet but sometimes i can be a meter from it and hear it just a tiny bit

Is this a problem?

 

[JimZet]

Try to plug other battery into the charger if its making noises than its the charger, if not than get urself other battery.

Usually 18650 chargers can be used for any battery , so u can use diff battery to check it.

In case if its making noises without battery try to replace it with the warranty u got when u bought it, dont use it, if u do make sure u r near it while charging to avoid fire etc...

 

[VNeil]

You might want to disclose the charger model so that someone with the same model can compare notes...

 

[Danny Shipley]

You might want to disclose the charger model so that someone with the same model can compare notes...

intellicharger i2

 

[Continuity]

Those chargers are known for some of them having a coil in them that can resonate at audible frequencies - they *all* resonate, it's just that manufacturers put potting compound or hot glue around certain components to change the resonant frequency.

If you can live with the noise, then put it a bit further away from you where it won't bother you so much - if you're a bit handy, and have a hot glue gun, I could dig out some images which show you where to apply the hot glue to damp down the resonance.

 

[Forkeh]

Every charger I've ever had made a low level electronic hum. I always just figured that was normal.

 

[BrotherBob]

Could read: Guide to Choosing a Battery Charger | E-Cigarette Forum

 

[Eskie]

Every charger I've ever had made a low level electronic hum. I always just figured that was normal.

Still, I never heard one screaming before.

 

[Continuity]

It's to do with the resonance in the inductor windings that they all have - sometimes the frequency can be into the audible range more than on others.

 

[Rickajho]

It's to do with the resonance in the inductor windings that they all have - sometimes the frequency can be into the audible range more than on others.

^^^ That. Some inductor coils are made better than others too. Never heard any inductor noise on my xtar chargers.

 

[Forkeh]

Still, I never heard one screaming before.

Well, I mean screaming is relative. He said it's not very loud. I always thought the sound was pretty high pitched. I'd call it more of a whining myself.

 

[Continuity]

You can just put some potting compound or hot glue around the component(s) - this changes the resonant frequency to somewhere that (hopefully) won't bother you as much.

 

[Bunnykiller]

Still, I never heard one screaming before.

put 4 28650's into one and listen

 

[CLOUDKICKER]

sounds like maybe your charger could have some electrical output problems. probably consider switching to nitecore d2 or d4 (what i am using)

 

[Danny Shipley]

It screams without batteries in , forgot to mention that

 

[Continuity]

It'll just be coil whine, as I posted earlier.

I'll bet the whine changes character/pitch when you put batteries in?

 

[Danny Shipley]

It'll just be coil whine, as I posted earlier.

I'll bet the whine changes character/pitch when you put batteries in?

It does indeed

 

[daviedog]

You can use polyurethane instead of glue. Inducter windings use thousands of winds, usually enameled wire in Audio applications,, in time ambient moisture adds to corrosion of wire. Also a surge can melt a few wires adding havoc. Actually potting should be done at the manufacturing stage to insure longevity.
I usually use hot paraffin to pot guitar pickups that i make..

 

[herb]

Test to make sure it's charging your batteries correctly . My Luc 4 started to inaccurately charge my battery's after about 8 months of use so i bought an Xtar and now everything is good again.

If it's charging your batteries correctly i wouldn't worry about the sound.