Review request for HKJ [USB Power Devices]

And Iā€™m happy to report it does not have the issue.

Iā€™m running that very load in a discharge test atm :slight_smile:
They can be quite easily had on eBay these daysā€¦ Just make sure yours does not have a short-circuit :

I have been thinking about that load, the review is here: Test/review of Electronic load ZKE EBD-USB

[quote=dodge_911]

Awesome, forgot all about checking eBay.

Nice! Thanks for the detailed review.

HKJ, I have a humble request for you when testing chargers. Could you add a chart comparison as to how fast a charger charges a device (at how many amps). Different chargers would have different charge rates and some would be faster/slower.

Data such as max charge amps etc could be nice or time to charge.

You can get a very good indication of that from my table: Index of tested and reviewed USB power supplies/chargers

Look at current for a single channel and look at ā€œStandardā€.
Standard=Auto and 2.4A for each port is the fastest charging for standard usb voltage.
I cannot do it better than that without testing with a couple of different empty phones and I am not going to do that.

Ok thanks :slight_smile:

I got my EDB-USB+ today and it is the version with a golden hs+fan even though the ebay listing shows the silver one.

Working fine too.

Nice 5>12V Step-Up converters with different plugs:

ebay.de/sch/m.html?_odkw=USB+5V+12V&ssn=canton-electronic


Please test at least one :)

I have tested one: Performance test of 5V to 12V 6W boost converter
The usb input connector was not mounted, but as can be seen it has holes for it.

Oh, great!
Thanks :slight_smile:

There are so much reviews on your websiteā€¦

Can you please tell me if itā€™s good enough for powering small DSL-Routers like a Fritzbox 4020?
They usually have around 5W.

This one is rated for about 0.5A at 12V, but can deliver 1A (For a short time).

Found this on heise:

Would be a great addition to your reviews :sunglasses:

I do not like that type of devices!

At least the Test Shield is for good.
https://www.usbkill.com/usb-killer/9-usb-killer-tester.html

When I want to zap something I uses more serious equipment and that would probably also zap the test shield.

But any equipment rated for mains usage must survive this test.

PS: That tester is a bit on the dangerous side.

Such a device with a higher discharge current than 3A would be even more interesting.

What about this two?

I own something like that 6-in-1 thingamajig. Basically itā€™s 3 loads you can combine : 0,5A, 1A and 2A.
At least thatā€™s what theyā€™re supposed to be, theyā€™re ceramic loads, so it may ā€˜varyā€™ a little.
Itā€™s also equipped with a bunch of LEDā€™s on the back, which consume about 0,8A and you can connect 4 more loads/devices to it.
Donā€™t believe mine has the mini/micro)usb connectors, but otherwise itā€™s identicalā€¦
Back in the day, before I had fancy electronic testers and loads, this is what I used to test stuff. Itā€™s quite oldā€¦

I might take a look at them.
The problem with usb isolators is that they only support fairly slow speeds.

Please consider to review following devices:

YZXstudio 8th Gen powerbank DS2784

Omnicharge PowerBank

PLX Devices Legion Portable Battery Charger 11000mAh