Can someone explain to me what this thing does?

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pinkpanda3310
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Can someone explain to me what this thing does?

I feel silly for asking but it irritates me to not understand Sick

https://www.banggood.com/35W-Constant-Current-Double-Adjustable-Electron...

I read through the specs but still don’t understand what it does exactly. What can it tell you that a regular usb meter cannot?

pommie
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Could be wrong but to me it is a dummy load for testing voltage drop at whatever amps.

Cheers David

Nothing to see here folks, move along...BLF GT proto

raccoon city
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Great Scott!

It's a Flux Capacitor!

DENGOH
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Me neither. I think It might be from North Korea.

vwpieces
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3. The main function of this product is the aging discharge test.
4. In order to better experience the work of the load tester, the product has been optimized to upgrade, even below 3V when the fan will work, and will not damage the goods, because before the customer, at 3V, the current is 4.5A Time, the device will be caused by overheating does not work, so now the fan is the whole process changes with temperature, Promise speed, the greater the power, the faster the fan speed! Cooling better!

I find it amusing…
I think it is basically a tester for QC 2 and 3.0 chargers. Those do some odd stuff while charging if the phone is compatible. Looks like the red stick part will trigger those higher voltage charge rates without phone attached. The double adjustment pots lost me. was funny to read it.

mrheosuper
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the left picture contains 2 modules, the vertical one is QC trigger module( it sends QC signal to the charger, powerbank, whatever you are testing), so that the output can be above 5v(quickcharge uses high voltage to accelerate the charging time)
the other module is dummy load, which basically wasting all energy, it also come with a screen so that you can know how much energy it has wasted and what is the current and voltage now

Forgot my pen

pinkpanda3310
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Aah, okay I was guessing it was a dummy load but didn’t know what the QC trigger module did.

Once in a while I see someone having use for a dummy load but I’m not smart enough to understand why you would need to do that. I like having a meter between the charger and battery/device. It tells me all I need to know.

Thanks for the answers GradBeer

everydaysurvivalgear
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What is said above is right. It would be useful to use on a few things. Power banks/battery banks, USB chargers, Cables.

Test how long a charger can supply a Said load.

Smaller chargers might be Quick Charge 3.0 rated but maybe only for 30 min or so before it gets to hot and drops wattage.

Quick charge 2.0 is like 5/9/12v @ 3 amps i think. I guess quick charge 3 may be able to supply more current now.

d_t_a
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I have something similar I bought from AliExpress.

The QC trigger is a separate item, not needed for regular testing 5v.
It can be used to trigger your QC-capable powerbank or powersupply to test load drain at say 9 or 12v.

It’s not a regular USB meter, it’s more of a USB load tester (apply a load to your power bank or charger) to test how much voltage sag under specified load. Can be used to test power bank’s capacity at your specified load.

Suncoaster
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I’m waiting for the HKJ review..

"In the land of the blond the one eyed man is king."

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Barkuti
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The QC trigger can be a cool stuff for some DIY project, if cheap enough of course. Any product links, d_t_a?

 

Cheers Smile

dodge_911
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I mess around with one for Lightning cable tests, and sometimes use it in charger tests on my YT channel...
If you want to see it in use, check this video :

I use both products there, to test the output of a charger...

 

And at the end of this video I mess around a bit with the QC enabler :

Barkuti wrote:

The QC trigger can be a cool stuff for some DIY project, if cheap enough of course. Any product links, d_t_a?

 

Cheers Smile

Here's one : https://www.banggood.com/JUWEI-QC2_03_0-Automatic-USB-Tester-Voltage-Amm...

:: youtube ::
http://bit.ly/dodgereviewsyt
:: blog ::
http://bit.ly/dodgereviewstmb
  :: powerbank capacity tests ::
http://bit.ly/drpbcc
:: μusb cable resistance tests ::
http://bit.ly/drmicrousb
:: lightning cable resistance tests ::
http://bit.ly/drlightning
 :: type-C cable resistance tests ::
http://bit.ly/drtypec

 

d_t_a
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A short simple and boring video of using the QC2/3 trigger board to trigger 5/9/12/20v from a QC3-capable charger:

https://youtu.be/zKXnex5bogo