Can someone explain to me what this thing does?

18 posts / 0 new
Last post
pinkpanda3310
pinkpanda3310's picture
Offline
Last seen: 1 hour 41 min ago
Joined: 12/28/2013 - 08:45
Posts: 1752
Location: Perth
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
Offline
Last seen: 4 hours 8 min ago
Joined: 08/28/2013 - 03:56
Posts: 934
Location: Corio, Victoria, Australia

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...

raccoon city
raccoon city's picture
Offline
Last seen: 1 hour 24 min ago
Joined: 10/06/2010 - 02:35
Posts: 11501
Location: रॅकून सिटी Palm Desert CA USA

Great Scott!

It's a Flux Capacitor!

DENGOH
DENGOH's picture
Offline
Last seen: 4 days 9 hours ago
Joined: 10/06/2012 - 05:26
Posts: 2038

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

cool i'll see you when you get there

vwpieces
vwpieces's picture
Offline
Last seen: 10 hours 20 min ago
Joined: 07/17/2016 - 19:49
Posts: 1983
Location: PA, USA

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
Offline
Last seen: 4 days 11 hours ago
Joined: 09/30/2016 - 12:44
Posts: 1270
Location: Ho Chi Minh City, Vietnam

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
pinkpanda3310's picture
Offline
Last seen: 1 hour 41 min ago
Joined: 12/28/2013 - 08:45
Posts: 1752
Location: Perth

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
everydaysurvivalgear's picture
Offline
Last seen: 2 hours 58 min ago
Joined: 07/31/2015 - 10:25
Posts: 3049
Location: sydney australia (GMT+10)

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
Offline
Last seen: 12 hours 28 min ago
Joined: 08/04/2017 - 23:58
Posts: 948
Location: Manila, Philippines

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
Suncoaster's picture
Offline
Last seen: 1 week 2 days ago
Joined: 02/22/2012 - 07:14
Posts: 2174
Location: Where the girls are green and the grass is pretty.

I’m waiting for the HKJ review..

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

*This message is protected with ROT26 encryption.Old Lumens

Barkuti
Barkuti's picture
Offline
Last seen: 2 hours 40 min ago
Joined: 02/19/2014 - 14:46
Posts: 3158
Location: Alhama de Murcia, Spain

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
dodge_911's picture
Offline
Last seen: 1 day 18 hours ago
Joined: 02/18/2016 - 15:07
Posts: 201
Location: DodgeReviews HQ

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
    :: powerbank capacity tests ::
http://bit.ly/drpbcc
:: μusb cable tests ::
http://bit.ly/drmicrousb
:: lightning cable tests ::
http://bit.ly/drlightning
 :: type-C cable tests ::
http://bit.ly/drtypec

 

d_t_a
Offline
Last seen: 12 hours 28 min ago
Joined: 08/04/2017 - 23:58
Posts: 948
Location: Manila, Philippines

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

pinkpanda3310
pinkpanda3310's picture
Offline
Last seen: 1 hour 41 min ago
Joined: 12/28/2013 - 08:45
Posts: 1752
Location: Perth

This thing in the OP, can it be used to check the output of an led driver?

zespectre
zespectre's picture
Offline
Last seen: 3 months 3 weeks ago
Joined: 02/10/2018 - 08:08
Posts: 97
Location: Shenandoah Valley

Yes, a unit like that is a combination of a USB multimeter, usually to monitor voltage, current, et-al, and can also provide it’s own load (the model I have will pull up to 35 watts).
It is very handy for stress testing USB ports on an old computer or laptop, and also for stress testing those USB “power pods” people have for recharging their phones to see if it is time for a new unit or if the batteries are okay.

So if you are charging something, you can put this “in the middle” as a meter.
If you have nothing to charge, or have a “suspect” USB item you can attach this and set a load to test the charger/power bank/etc.

Tonights forecast, 100% chance of dark.

pinkpanda3310
pinkpanda3310's picture
Offline
Last seen: 1 hour 41 min ago
Joined: 12/28/2013 - 08:45
Posts: 1752
Location: Perth

I figured as much but wanted to check first. Thanks zespectre Thumbs Up

Sometimes I want to test a driver but don’t have the right led (or leds) set up to do the check.

Flying Luminosity
Flying Luminosity's picture
Offline
Last seen: 2 weeks 5 hours ago
Joined: 09/12/2017 - 13:33
Posts: 342
Location: UK

I bought one, as I wanted to know whether my USB charger can really supply 2.4A per channel, and to test the accuracy of my existing voltage meter.

(When I turned up the resistance, the current seemed to level out at around 4.4A and it seemed wise to abandon my test!)

I’d also like to see a test from HKJ.

d_t_a
Offline
Last seen: 12 hours 28 min ago
Joined: 08/04/2017 - 23:58
Posts: 948
Location: Manila, Philippines

Flying Luminosity wrote:
I bought one, as I wanted to know whether my USB charger can really supply 2.4A per channel, and to test the accuracy of my existing voltage meter.

(When I turned up the resistance, the current seemed to level out at around 4.4A and it seemed wise to abandon my test!)

I’d also like to see a test from HKJ.

You can change the language interface from Chinese to English (and vice versa) by quick-pressing the button 6 times consecutively.