Test/review of Quick Charge 3.0 3 port charger AR-QC-03

11 posts / 0 new
Last post
HKJ
HKJ's picture
Offline
Last seen: 3 hours 34 min ago
Joined: 05/24/2011 - 12:23
Posts: 7403
Location: Copenhagen, Denmark
Test/review of Quick Charge 3.0 3 port charger AR-QC-03

Quick Charge 3.0 3 port charger AR-QC-03
DSC_2117
Official specifications:


  • Item Type: QC 3.0 Quick Charging Wall Charger Adapter Station
  • Material: ABS+PC
  • Color: Orange
  • Plug Type: US Plug
  • Interface: 3* USB
  • Input: AC 100V-240V, 50/60Hz, 0.5A
  • Output: 5V/3A, 9V/2A, 12V/1.5A
  • QC3.0 Output: DC 5V/2.4A, 9V/1.8A, 9V-12V/1.5A

I got it from ebay dealer: to-the-better
DSC_2116
DSC_2120 DSC_2121 DSC_2122 DSC_2123
DSC_2118
DSC_2119
Measurements


  • Power consumption when idle is 0.2 watt
  • Both USB output is usb charger (DCP)
  • QC output is auto coding with Apple 2.4A, Samsung, DCP, QC3, Samsung-AFC, Huwai-FCP
  • Minimum QC3 voltage is 4.3V
  • The two outputs are in parallel.
  • QC and 5V outputs are not directly connected.
  • Weight: 48.3g
  • Size: 67 × 45.1 × 27.2mm

Quick%20Charge%203.0%203%20port%20charger%20AR-QC-03%20%231%20230V%20load%20sweep
Output current on the first output is slightly below 1A, this is not very good for a 2.1A rated output.
Quick%20Charge%203.0%203%20port%20charger%20AR-QC-03%20%232%20230V%20load%20sweep
Second output is the same.
Quick%20Charge%203.0%203%20port%20charger%20AR-QC-03%20%2312%20230V%20load%20sweep
And when used in parallel it is again the same, i.e. about 1A total available for two 2.1A rated outputs.
Quick%20Charge%203.0%203%20port%20charger%20AR-QC-03%20%2312%20120V%20load%20sweep
At 120VAC the current is slightly lower.
Quick%20Charge%203.0%203%20port%20charger%20AR-QC-03%20QC5V%20230V%20load%20sweep
The QC output can deliver 3A.
Quick%20Charge%203.0%203%20port%20charger%20AR-QC-03%20QC9V%20230V%20load%20sweep
At 9V QC is about 1.8A
Quick%20Charge%203.0%203%20port%20charger%20AR-QC-03%20QC12V%20230V%20load%20sweep
And at 12V it is 1.4A
Quick%20Charge%203.0%203%20port%20charger%20AR-QC-03%20230V%20load%20test
I did the load test at 5V 0.9A and 12V 1.2A and it could handle that for 1 hour.
The temperature photos below are taken between 30 minutes and 60 minutes into the one hour test.
Temp5991
M1: 61.8°C, HS1: 73.1°C
HS1 is way above the QC transformer, M1 is the metal piece inside the charger.
Temp5992
HS1: 83.0°C
HS1 is the circuit board near the 5V transformer.
Temp5993
M1: 82.3°C, HS1: 87.6°C
HS1 is below the QC transformer and M1 is below the 5V transformer.
Temp5994
M1: 82.1°C, HS1: 99.8°C
HS1 is the circuit board near the QC transformer (This is rather hot) and M1 is near the QC rectifier diode.
Temp5995
M1: 52.0°C, HS1: 69.1°C

10ohm
At 0.5A the noise is 118mV rms and 726mVpp.
5ohm
At 1A the noise is 135mV rms and 850mVpp.
10ohmQC5V
At 5V 0.5A QC the noise is 90mV rms and 1470mVpp.
2ohmQC5V
At 5V 2.5A QC the noise is 243mV rms and 1878mVpp.
10ohmQC12V
At 12V 1.2A QC the noise is 115mV rms and 1807mVpp, this is a very high noise level at any current.
Tear down
DSC_2240
This type of enclosure is often easy to open: Tie the bottom down in a vice and whack the top with a mallet, it worked fine here.
DSC_2241
A metal piece inside the enclosure, it could have been for heat spreading, but it is above the circuit board and not touching anything. This means it is probably to make the charger heavier,
DSC_2242
There is a fusible resistor at the mains input, one switcher IC (U1: DK112 18W switcher) with opto feedback (U2), there is a rectifier diode (D2) on the low volt side, this uses the large transformer and is for the QC output. The 5V output uses the small transformer and a smaller diode (D5).
Between the two transformers is also the “safety capacitor” (CY1) that is a 1kV non safety type.
DSC_2244 DSC_2245
DSC_2246 DSC_2247
DSC_2243
On this side is the bridge rectifier (B1) and the switcher (U1: Marked DP3773) for the 5V output. On the QC side is the QC controller (U3: Marked FT4kFA) and a reference (Q1: 431).
DSC_2248
DSC_2249 DSC_2250
The isolation distance with a slot in the circuit board is minimum 4mm, here it is about 3mm and the same without a slot.
Testing with 2830 volt and 4242 volt failed the 4242V test, this means it is unsafe in 230V countries.
Conclusion
Performance of this charger is fairly bad, the 5V can only deliver 1A and both 5V and QC has a lot of noise.
Safety is even worse: It do not use a safety capacitor and isolation distance is way too low. I do not like that the enclosure is nearly 100°C on the outside.
Notes
The charger was supplied by a reader for review.
Index of all tested USB power supplies/chargers
Read more about how I test USB power supplies/charger
How does a usb charger work?

My website with reviews of many chargers and batteries (More than 1000): https://lygte-info.dk/

everydaysurvivalgear
everydaysurvivalgear's picture
Offline
Last seen: 3 hours 47 min ago
Joined: 07/31/2015 - 10:25
Posts: 3695
Location: sydney australia (GMT+10)

Thanks for the review HKJ.

Lucky the case is not a low temp melting point plastic.

Throw this charger in the trash lol.

HenrysCat
HenrysCat's picture
Offline
Last seen: 1 day 2 hours ago
Joined: 02/23/2019 - 12:50
Posts: 70
Location: 127.0.0.1

A question for HKJ or anyone with the knowledge Wink I have just got a new scope and discovered I also have the same charger, so I tested with 0.5A load and got 1.1Vpp, not far from HKJ's reading at 0.5A, but where or how to get the noise mV reading?

Thanks

https://i.imgrpost.com/imgr/2021/07/01/AR-QC-03.jpg

Couchmaster
Offline
Last seen: 1 hour 31 min ago
Joined: 05/04/2016 - 17:11
Posts: 469
Location: USA
HenrysCat wrote:

A question for HKJ or anyone with the knowledge Wink I have just got a new scope and discovered I also have the same charger, so I tested with 0.5A load and got 1.1Vpp, not far from HKJ’s reading at 0.5A, but where or how to get the noise mV reading?


Thanks

HKJ does a great job of explaining the full meal deal here: https://lygte-info.dk/info/usbPowerSupplyTestHow%20UK.html

Edit: but I’m not sure, after reviewing it, that it directly answers your question……

HKJ
HKJ's picture
Offline
Last seen: 3 hours 34 min ago
Joined: 05/24/2011 - 12:23
Posts: 7403
Location: Copenhagen, Denmark
HenrysCat wrote:

A question for HKJ or anyone with the knowledge Wink I have just got a new scope and discovered I also have the same charger, so I tested with 0.5A load and got 1.1Vpp, not far from HKJ’s reading at 0.5A, but where or how to get the noise mV reading?

I am not sure I really know what you are asking.

You can change the coupling to AC when measuring noise.
I run my scope on batteries to keep the influence from common mode noise low (Easy with a PicoScope and a laptop).

My website with reviews of many chargers and batteries (More than 1000): https://lygte-info.dk/

HenrysCat
HenrysCat's picture
Offline
Last seen: 1 day 2 hours ago
Joined: 02/23/2019 - 12:50
Posts: 70
Location: 127.0.0.1

You put "At 0.5A the noise is 118mV rms" wondering how you get/calculate that.

HKJ
HKJ's picture
Offline
Last seen: 3 hours 34 min ago
Joined: 05/24/2011 - 12:23
Posts: 7403
Location: Copenhagen, Denmark
HenrysCat wrote:

You put “At 0.5A the noise is 118mV rms” wondering how you get/calculate that.

I select the RMS readout on the scope (You must use AC coupling for this to work).

My website with reviews of many chargers and batteries (More than 1000): https://lygte-info.dk/

CR888
Online
Last seen: 1 min 53 sec ago
Joined: 01/13/2021 - 08:31
Posts: 288
Location: Australia

Qualcomm I thought were like the pioneers of QC charging. While very common for Chinese chargers to not perform up to advertised specs, I thought Qualcomm was above that. Having two ports that deliver only 1A is a big disappointment, many of our gadgets don’t have QC3.0 or PD-18W charging so those ports are important! When I saw this thread initially I thought ‘whats the point’? I thought testing a Qualcomm charger would just prove what is on the box, I was dead wrong and the testing proves why it’s important to scrutinize such products. Thanks for testing.

CR888

HenrysCat
HenrysCat's picture
Offline
Last seen: 1 day 2 hours ago
Joined: 02/23/2019 - 12:50
Posts: 70
Location: 127.0.0.1

HKJ wrote:
I select the RMS readout on the scope (You must use AC coupling for this to work).

 

 That worked, only I get 400mV rms

chargerlover
Offline
Last seen: 2 weeks 1 day ago
Joined: 11/09/2019 - 02:45
Posts: 25

Thank HKJ, long time no see any new post from you.
This post is great as usual <3

HKJ
HKJ's picture
Offline
Last seen: 3 hours 34 min ago
Joined: 05/24/2011 - 12:23
Posts: 7403
Location: Copenhagen, Denmark
chargerlover wrote:
Thank HKJ, long time no see any new post from you.

I have slowed down in reviewing stuff, at the current time it is only batteries.

My website with reviews of many chargers and batteries (More than 1000): https://lygte-info.dk/