Question 1

Can you use this to test if you need a charge port or charge ic replacement on your device?

Accepted Answer

If I understand your question correctly, you're asking if this can check whether something isn't charging because of the port you're plugging into being faulty or whether the device itself is not taking charge. Then, the answer is probably, yes. I personally use it to check "unknown" USB ports before plugging in my expensive equipment. Plug the tester itself into the port and check that the voltage is reported as between 5.0 and 5.15V with no load. Then plug in a "known good" device to the other end of the tester and check that the voltage remains good (above 4.9V) and the current drawn is "about right" for the device plugged in (can be very variable). If this all seems good then plug in your "suspect" device and check again what happens to the output voltage and current drawn.

Question 2

Does this device support USB 3.0 for faster data transmission?

Accepted Answer

It definitely does not support USB 3.0. I was very disappointed when I realised as I’d not have paid as much as I did.

Question 3

Can I measure energy consumption on my laptop while running applications as Energy from this tester?

Accepted Answer

This device will only tell you the out put voltage of the usb socket it’s plugged into. The power consumption is only displayed when you plug a usb peripheral into the pass through usb socket but then will not show the power consumption of your laptop but only power consumption that’s plugged in the the pass through usb socket of this device.
You must have some kind of software app on your pc/ mac to show you the power your computer used while running.

Hope this helps

Question 4

Does a hard drive plugged in to this connect to the pc? i have another of these volt/amp meters, but connected hard drives aren't be seen by the pc

Accepted Answer

Just tried mine on this USB 3 hard drive enclosure:

https://www.amazon.co.uk/Sabrent-External-Lay-Flat-Docking-Station/dp/B00LS5NFQ2/ref=sr_1_12?crid=2MD6XPK2QB5GN&dchild=1&keywords=sabrent&qid=1598605732&sprefix=sabrent%2Caps%2C148&sr=8-12

fitted with a 3.5 inch 2tB SATA hard drive and it does seem to work OK. The drive shows up in Explorer and I can read and write to the drive. Seems a little slow though - maybe only running at USB 2 speed. Also bear in mind that the USB hard drive is externally powered with its own 12V mains adapter.

Hope that helps.

ASIN	B06XFZFZX6
Brand	COOWOO
Colour	black
Compatible Devices	cellphone, power bank, I-pad, tablet pc
Customer Reviews	4.5 4.5 out of 5 stars (234)
Direct Current Maximum	5.1 Amps
Item Dimensions	6 x 1 x 2 millimetres
Manufacturer	COOWOO
Manufacturer Part Number	SIYECAO
Maximum Operating Voltage	30 Volts
Measurement Type	Multimeter
Minimum Operating Voltage	3 Volts
Number of Items	1
Number of Packs	1
Power Source	DC
Specification Met	energy
Style Name	Modern
UPC	191094498818
Upper Temperature Rating	60 Degrees Celsius

USB Tester Digital Power Meter Tester Multimeter Current and Voltage Monitor, DC 5.1A 30V Amp Voltage Power Meter, Testing Speed of Chargers, Cables, Capacity of Power Banks

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