200W wireless charger? How is this possible? Some kind of scam?
I just stumbled upon this wireless charger on AliExpress and they claim it's 200W. Is this a scam?
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100% scam. If this will have really 200w then must have power supply 5V 40A (when is 100% efficient 😄) i think the model name is 200W😄 but 200w power not possible. I think is 5-15W max.
Update (06/14/23)
yes, in the Specs is max 30W. Then in Real max 20W 😄
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@rickcostel - Well it’s not that simple! If you review the images the last one tells you the Apple devices won’t pull more than 7.5 Watts.
Let’s look at this in a mind model… you have a desk lamp but the outlet is on the other side of the room so you need an extension cord a cheap 10 Amp cord would do - right?
Now let’s swap out the extension for a super heavy weight 30 Amp cord the light will still work and nothing changes!
Let’s jump back to that cheap cord, but this time we plug in a window A/C which really needs a 20 Amp cord. Clearly as the A/C works harder the cord will heat up and hopefully the breaker blows.
So while the AliExpress seller claims 200 Watts the device under charge dictates the draw. Even still as my example with the A/C running full out would burn the cord out, but unlike the A/C the QI standard has a feedback system so if the battery gets too hot the charge power is dropped. So while they claim 200 Watts I don’t think any current devices could even draw that much. Besides the charger can’t offer more that is able to! So the max will be what the charger offers not the charging Pucks rating!
Someone was being creative in the ad for sure!
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I've been reading about this Qi standard and it's interesting. This website says the medium power wireless charging can deliver up to 120W. https://www.powerelectronictips.com/basi...
I also noticed something that stood out to me. They say that power is delivered in the signal range of 80 and 800 kHz. As a musician, I have learned that humans can only hear frequencies as high as 20 kHz and anything above that is considered ultrasonic.
That said, in terms of Audio Frequency (AF), the average adult female vocalist can sing as high as C5 (523 Hz), while Mariah Carey's highest note is a G#7/Ab7 (3.32244 kHz) what if she could go all the way up to 80 kHz? Would her voice become electrical? Could she charge my iPhone with her voice?
@rickcostel - Never thought of it like that! You mean she could electrocute you with her voice! What a way to go😂
I’m sure she would kill your phone too!
