Scorpio (IGUGIG) 3 USB Power Strip TX-USB03

DSC_7844

Official specifications: It is sold by amazon.com.au

DSC_7814
DSC_7815
DSC_7816
DSC_7817

It arrived in cardboard box with specification on it, but they are in Chinese.

DSC_7843

The box contained the power strip with usb charger, nothing else.

DSC_7845 DSC_7846

DSC_7847

DSC_7848 DSC_7849

DSC_7850 DSC_7851

The outputs are on when the side with the ridge is pushed down, there is a white led on the opposite end of the switch behind the plastic.

DSC_7852
DSC_7853



Measurements

Scorpio%20%231%20230V%20load%20sweep

The USB output can deliver 2.1A.

Scorpio%20%233%20230V%20load%20sweep

The same on another output.

Scorpio%20230V%20load%20sweep

All outputs used together is also 2.1A

Scorpio%20120V%20load%20sweep

And slightly lower at 120VAC.

Scorpio%20230V%20load%20test

Running the charger with 2A total output current for 1 hour worked, but the output voltage drops when the charger warms up.
The temperature photos below are taken between 30 minutes and 60 minutes into the one hour test.

Temp6858

M1: 37.5C, HS1: 62.4C
HS1 is the transformer.

Temp6859

M1: 51.4C, HS1: 56.5C

Temp6860

HS1: 56.3C

Temp6861

HS1: 55.4C

Temp6862

HS1: 62.0C

10ohm

At 0.5A the noise is 42mV rms and 587mVpp.

5ohm

At 1A the noise is 53mV rms and 693mVpp.

2.5ohm

At 2A the noise is 88mV rms and 856mVpp, there is generally a lot of noise.

test%2025A

The switch looked like it might have some sort of overload cutout, but testing with 25A did not activate it, instead it damaged the switch.



Tear down

DSC_7901

I had to remove 6 screws from under the feet to open it.

DSC_7902

The bottom has mouldings to keep the mains part in place, but nothing for the USB part.

DSC_7903

It looks like there has been some heat around the input switch, probably during my 25A test. The switch do not work anymore, it was probably damaged by the heat.

Cables

A look at the cable, the earth wire is very thin compared to the live/neutral wires.

DSC_7907

On this side is a glass input fuse next to a bridge rectifier and a safety capacitor (CY1). The mains switcher is a single chip (CSC7318). On the low volt side is a rectifier diode (D3).

DSC_7908 DSC_7910

DSC_7911 DSC_7909

DSC_7906

DSC_7912

DSC_7913 DSC_7918

Across a slot in the circuit board there must be 4mm between mains and low volt side, here it is around 2.5mm.
On a circuit board the distance must be above 6mm, here is about 2mm!

The charger passed the 2830 volt test and failed 4242 volt test between mains and low volt side, this makes it unsafe in 230VAC countries.



Conclusion

This is not a good USB charger, the output power is only enough for one device and the design it not very safe.
As a power strip it can be used, but it is not good for high power devices, the switch is too weak and the cable slightly thin, except the earth connection that is very thin.



Notes

The device 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?