USB power meter/tester thread - YZXStudio, Power-Z, RDTech and more.

312 posts / 0 new
Last post
Pete7874
Pete7874's picture
Online
Last seen: 1 min 5 sec ago
Joined: 11/23/2011 - 16:47
Posts: 2722
Location: USA
xnode wrote:
Does anybody know how to contact RD’s tech support? On AliExpress’s page there isn’t any email available.

https://www.mediafire.com/folder/pqn0ybytqpy7n/TC66

Their contact info (including email) is in the Word doc.

Their email info is also included in the User Manual: 1749808860@qq.com

Which phone are you using? What firmware version is on your TC66? I believe v1.13 is the latest.

xnode
Offline
Last seen: 2 months 2 weeks ago
Joined: 04/20/2018 - 06:20
Posts: 19
Location: Europe
Pete7874 wrote:
xnode wrote:
Does anybody know how to contact RD’s tech support? On AliExpress’s page there isn’t any email available.

https://www.mediafire.com/folder/pqn0ybytqpy7n/TC66

Their contact info (including email) is in the Word doc.

Their email info is also included in the User Manual: 1749808860@qq.com

Which phone are you using? What firmware version is on your TC66? I believe v1.13 is the latest.


Thanks, finally got a way to contant him. Go to product page (desktop view of the website better):

RD TC66/TC66C Type-C PD trigger USB-C Voltmeter ammeter voltage 2 way current meter multimeter PD charger battery USB Tester

Then click on Contact

You need to be registered with an account at Aliexpress to be able to use private messaging.

Youngcrazy
Youngcrazy's picture
Offline
Last seen: 1 week 4 days ago
Joined: 03/16/2019 - 03:08
Posts: 41
Location: hangzhou

why you use photos of UM34C when you are talking about UM24C Question

Youngcrazy
Youngcrazy's picture
Offline
Last seen: 1 week 4 days ago
Joined: 03/16/2019 - 03:08
Posts: 41
Location: hangzhou

EdT wrote:
There is now also several UM25 clones which are several dollars cheaper than the RuiDeng UM25/25C

Most UT25 has been removed from Aliexpress, we should support originals instead of copies , otherwise it will cause loss to the original creator and they may never create new products
RD tech
RD tech's picture
Offline
Last seen: 15 hours 25 min ago
Joined: 08/27/2016 - 04:34
Posts: 404

BlueSwordM wrote:
Only the UM34C supports Dash Charge due to the additional pins of the USB 3 connector on that meter.

hello,when did you buy UM25C, the latest version supports OnePlus Dash Charge

If you have any interest in USB tester or power supply, please contact me
this is my shop on Aliexpress: https://rdtech.aliexpress.com/store/923042

chx
Offline
Last seen: 4 months 2 days ago
Joined: 04/21/2019 - 18:05
Posts: 6

Does anyone know of a prepackaged 60W DC to USB C thing? https://www.nicelineshop.com/index.php?main_page=product_info&cPath=&pro... this is just the bare board, I’d like a case with it, if possible

maukka
maukka's picture
Offline
Last seen: 35 min 54 sec ago
Joined: 12/31/2015 - 04:15
Posts: 1864
Location: Finland
will34
will34's picture
Offline
Last seen: 15 hours 5 min ago
Joined: 12/18/2012 - 00:12
Posts: 3608

This one might be your best bet:

https://rover.ebay.com/rover/0/0/0?mpre=https%3A%2F%2Fwww.ebay.com%2Fulk...

That bare board has great specs, but I find it hard to believe it would be able to handle 60W of output at lower range of input voltage for long times, say 12V which is 5A+ constant input, chargers usually get quite hot at that rate.

RD tech
RD tech's picture
Offline
Last seen: 15 hours 25 min ago
Joined: 08/27/2016 - 04:34
Posts: 404

so sorry, we don’t have

If you have any interest in USB tester or power supply, please contact me
this is my shop on Aliexpress: https://rdtech.aliexpress.com/store/923042

chx
Offline
Last seen: 4 months 2 days ago
Joined: 04/21/2019 - 18:05
Posts: 6

will34 wrote:
This one might be your best bet:

https://rover.ebay.com/rover/0/0/0?mpre=https%3A%2F%2Fwww.ebay.com%2Fulk...

That bare board has great specs, but I find it hard to believe it would be able to handle 60W of output at lower range of input voltage for long times, say 12V which is 5A+ constant input, chargers usually get quite hot at that rate.

Looks quite great, thanks! However, the size and price is a bit overkill. For such multiport usage, the MagicFox PD180 https://item.jd.com/36832086035.html is cheaper and has higher wattage.

I plan to feed it with 20V. The Lenovo 135W charger looks like great target. https://www.reddit.com/r/thinkpad/comments/bpnc9o/the_p1×1e_small_135w_...

RD tech
RD tech's picture
Offline
Last seen: 15 hours 25 min ago
Joined: 08/27/2016 - 04:34
Posts: 404

hope you get the better one

If you have any interest in USB tester or power supply, please contact me
this is my shop on Aliexpress: https://rdtech.aliexpress.com/store/923042

JJSEA
Offline
Last seen: 3 months 3 weeks ago
Joined: 04/21/2019 - 08:51
Posts: 7
Location: Thailand

YZXstudio has a newer model ZC918P that does 160W. I bought one off ebay, but it’s also available aliexpress. Like other YZXstudio products, it’s good quality but quite expensive.

The Magic Fox PD180 looks very interesting. I think it is unique in offering PD input. Is it available anywhere more accessible than jd.com?

xnode
Offline
Last seen: 2 months 2 weeks ago
Joined: 04/20/2018 - 06:20
Posts: 19
Location: Europe

If I want to test the maximum output of a charger, which adjustable load can I buy? Some recommendations?

dodge_911
dodge_911's picture
Offline
Last seen: 1 month 5 days ago
Joined: 02/18/2016 - 15:07
Posts: 219
Location: DodgeReviews HQ

xnode wrote:
If I want to test the maximum output of a charger, which adjustable load can I buy? Some recommendations?

Depends on the output of the charger you want to test Smile
Here are some of the ones I use for my videos :
https://www.banggood.com/35W-Constant-Current-Double-Adjustable-Electronic-Load-QC2_03_0-Trigger-Quick-Voltage-USB-Tester-p-1194871.html

https://www.banggood.com/8-In-1-150W180W-Digital-Battery-Capacity-Tester-Voltmeter-p-1248703.html

These are just loads, so you'll need something to trigger the protocol you need.

These are just my two cents, btw Smile

:: YouTube ::
http://bit.ly/dodgereviewsyt
:: Discord ::
http://discord.gg/fqJEDyy
:: Join the Discord ::
we need more BLF'ers!
xnode
Offline
Last seen: 2 months 2 weeks ago
Joined: 04/20/2018 - 06:20
Posts: 19
Location: Europe

I’ve found a new meter similar to YZXstudio ZY1280, is it a copy or is original?

MagicFox魔狐U2 UX电流电压USB测试表QC4 PD3.0 2.0 PPS快充协议容量检测 U2表(无蓝牙)送短CC线

angerdan
angerdan's picture
Offline
Last seen: 1 hour 31 min ago
Joined: 11/01/2015 - 10:07
Posts: 419

xnode wrote:
If I want to test the maximum output of a charger, which adjustable load can I buy?
Some recommendations?

I’d suggest a load with more power than your charger can use. With USB, 35W are usual:
http://budgetlightforum.com/node/49383
http://budgetlightforum.com/node/48747
http://budgetlightforum.com/node/62305
JJSEA
Offline
Last seen: 3 months 3 weeks ago
Joined: 04/21/2019 - 08:51
Posts: 7
Location: Thailand

The Magic Fox one looks like an unbadged version of WEB-U2 (more recently branded as WITRN U2)

https://www.banggood.com/WEB-U2-Current-And-Voltage-Meter-USB-Tester-QC4-PD3_0-2_0-PPS-Fast-Charging-Protocol-Capacity-Test-p-1347851.html

There are very similar USB testers sold under several different brands and the relationship between them is not clear to me (e.g. YZXstudio, WITRN, WEB-, POWER-Z, AVHzY)

RD tech
RD tech's picture
Offline
Last seen: 15 hours 25 min ago
Joined: 08/27/2016 - 04:34
Posts: 404

not , it is web-z meter , they are different

If you have any interest in USB tester or power supply, please contact me
this is my shop on Aliexpress: https://rdtech.aliexpress.com/store/923042

RD tech
RD tech's picture
Offline
Last seen: 15 hours 25 min ago
Joined: 08/27/2016 - 04:34
Posts: 404

they are all USB load , but the first one is a trash

If you have any interest in USB tester or power supply, please contact me
this is my shop on Aliexpress: https://rdtech.aliexpress.com/store/923042

JJSEA
Offline
Last seen: 3 months 3 weeks ago
Joined: 04/21/2019 - 08:51
Posts: 7
Location: Thailand

I have the RD LD35

https://www.aliexpress.com/item/32882318330.html

This is just a load: if I want to do triggering, I prefer to do it separately.

RD tech
RD tech's picture
Offline
Last seen: 15 hours 25 min ago
Joined: 08/27/2016 - 04:34
Posts: 404

JJSEA wrote:
I have the RD LD35

https://www.aliexpress.com/item/32882318330.html

This is just a load: if I want to do triggering, I prefer to do it separately.


this is our LD35, it don’t have trigger function, if you need trigger function, you can check our other version HD35
https://www.aliexpress.com/item/RD-HD25-HD35-Trigger-QC2-0-QC3-0-Electro...USB-Load-resistor-Discharge-battery-test-adjustable/32917594486.html?spm=a2g0s.12269583.0.0.29227e83ZyJ5Ff

If you have any interest in USB tester or power supply, please contact me
this is my shop on Aliexpress: https://rdtech.aliexpress.com/store/923042

JJSEA
Offline
Last seen: 3 months 3 weeks ago
Joined: 04/21/2019 - 08:51
Posts: 7
Location: Thailand
RD tech wrote:
this is our LD35, it don’t have trigger function, if you need trigger function, you can check our other version HD35 https://www.aliexpress.com/item/RD-HD25-HD35-Trigger-QC2-0-QC3-0-Electro...USB-Load-resistor-Discharge-battery-test-adjustable/32917594486.html?spm=a2g0s.12269583.0.0.29227e83ZyJ5Ff

I believe it has only QC trigger function. It would be great to have a load that also had PD trigger function.

RD tech
RD tech's picture
Offline
Last seen: 15 hours 25 min ago
Joined: 08/27/2016 - 04:34
Posts: 404

for not , there is not PD trigger load

If you have any interest in USB tester or power supply, please contact me
this is my shop on Aliexpress: https://rdtech.aliexpress.com/store/923042

JJSEA
Offline
Last seen: 3 months 3 weeks ago
Joined: 04/21/2019 - 08:51
Posts: 7
Location: Thailand

I found another YZXstudio DC-PD adapter on ebay ZC823×3 (it’s also on their Taobao store): 180W, 6 ports arranged as 3 × 60W USB C/USB A pairs, and DC or PD input.

https://www.ebay.com/itm/ZC823×3-PD-180W-Multi-Protocol-Fast-Charge-App...

I ordered one.

RD tech
RD tech's picture
Offline
Last seen: 15 hours 25 min ago
Joined: 08/27/2016 - 04:34
Posts: 404

this is a charger, not a load, I just talked about the USB load

If you have any interest in USB tester or power supply, please contact me
this is my shop on Aliexpress: https://rdtech.aliexpress.com/store/923042

will34
will34's picture
Offline
Last seen: 15 hours 5 min ago
Joined: 12/18/2012 - 00:12
Posts: 3608
RD tech wrote:
for not , there is not PD trigger load

Do you plan to release a usb load with PD trigger and higher power capability?

BlueSwordM
BlueSwordM's picture
Offline
Last seen: 2 hours 51 min ago
Joined: 11/29/2017 - 12:34
Posts: 5177
Location: Canada

Yes, I’d love one.

I’d also be willing to pay a pretty penny for one.

My very own high current Beryllium Copper springs Gen 3:
http://budgetlightforum.com/node/67401
Liitokala Aliexpress Stores Battery Fraud: http://budgetlightforum.com/node/60547

maukka
maukka's picture
Offline
Last seen: 35 min 54 sec ago
Joined: 12/31/2015 - 04:15
Posts: 1864
Location: Finland

Also maybe with solder pads or terminals for connecting other than USB devices directly without a USB adapter, since that’s a lousy connection.

will34
will34's picture
Offline
Last seen: 15 hours 5 min ago
Joined: 12/18/2012 - 00:12
Posts: 3608

BlueSwordM wrote:
Yes, I’d love one.

I’d also be willing to pay a pretty penny for one.

If you’re willing to pay pretty penny I’d recommend YZXstudio zl1100, it can trigger every charge protocol, 0-3A ramping, serial data logging and up to 60W PD (indefinitely with the correct cooling conditions).

Everything is managed via the integrated OLED screen but you can easily translate the serial data into graphs with jcharts or similar tool.

maukka
maukka's picture
Offline
Last seen: 35 min 54 sec ago
Joined: 12/31/2015 - 04:15
Posts: 1864
Location: Finland

Too bad my first batch ZL1100 can’t trigger PD even with a newer firmware. Just says NG. So make sure you get a recent one.

Pages