Review request for HKJ [USB Power Devices]

I like to suggest following devices for review:



T50N Dual USB Voltage, Current, Power Capacity Meter, Support QC2.0, QC3.0, PD Test

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The Kotomi Premium USB Voltage Meter USB Table QC/PD Triggers PD Testing Meter Kotomi Pre

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RD UM34 UM34C for APP USB 3.0 Type-C DC Voltmeter ammeter voltage current meter battery charge measure cable resistance Tester

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WEB-U3se USB Voltage Current Meter Capacity Apple Lightning Data Line Tester MFI Silver Box

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WEB-UL001 Adjustable Constant Current Electronic Load Mobile Power Supply USB Aging Discharge Test Instrument Wire Tester

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WEB-UCC001 Car Charger Charging More than Seven in One Head QC PD SCP Desktop Fast Charge IP6518

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WEB-UPD003 Fast Charge IPhoneX 13 to 1 Charge QC DC to PD VOOC SCP FCP AFC Head

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QC2.0 QC3.0 test board, Qualcomm fast charge head, mobile power detection, hand automatic switching

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USB QC2.0 QC3.0 test board burn-in board trap tester protocol board polling device

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PD Type-c USB Test Board Burn-in Board Trap Tester Protocol Board Polling Device

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USB PD voltage trigger and tester, mutation device

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USB PD decoy type-C PD test board adapter voltage polling protocol fixture

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DC-DC Power Supply Buck Module 8V-35VTo 5V 8A 4-port USB Car Power Charging Converter Support Android/iPhone Phone Fast Charging

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POWER-Z Bit Dog CNC aluminum alloy OLED, QC3.0, FCP, MTK double USB charger, car charger

Good list, I will definitely get some of the stuff on it. I have not decided how much yet.

The Tomo Epilot E4 is available from Gearbest (black is a few cents cheaper than white); maybe there’s a generic coupon code somewhere to bring down the price…

https://www.gearbest.com/chargers/pp_1319856.html

I saw a cheaper price for the Epilot E4, but I’m not familiar with the following online store, and whether they ship or not…

https://www.chinabrands.com/item/dropship-epilot-e4-diy-4-x-18650-li-ion-battery-charger-smart-power-bank-with-led-flashlight-display-temperature-2426261-p.html

~

While searching for the Tomo powerbanks, I came across other models too:

Tomo D2 (2x 26650) powerbank/charger:
https://www.gearbest.com/chargers/pp_1524290.html
(specs list the input current @ 1A ; it will take a long time to fully charge 2x 5000+ mAh 26650 with this powerbank…)

Tomo K2 powerbank/charger/flashlight (2x18650):
https://www.gearbest.com/chargers/pp_009791773690.html

I like to suggest these USB power supplies:
https://www.navilock.de/produkte/1407_AC/62516/merkmale.html
https://www.google.com/shopping/product/5248245363798167092?prds=scoring:tps
https://www.reichelt.de/Ladegeraete-fuer-USB-Geraete/USB-AC-NL-USB2/3/index.html?ACTION=3&GROUPID=4924&ARTICLE=143238&START=0&OFFSET=100&

YZXStudio ZY1280

https://www.fasttech.com/product/9654021-yzxstudio-zy1280-usb-power-meter-power-delivery
https://www.ebay.com/itm/ZY1280-USB-Power-Monitor-Current-Voltage-Capacity-Quick-Charge-QC4-PD3-0-MFI-PPS/173408572140
https://aliexpress.com/item/YZXstudio-Farbe-Meter-USB-Strom-Spannung-Kapazit-t-Schnellladung-QC4-PD3-0-MFI-PPS-Protokoll-Tester/32851111369.html

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QooPow™ qualMeter (Basic)

https://www.amazon.com/Cable-Charger-Quality-Tester-Dummies/dp/B01LZIXGYW

https://www.kickstarter.com/projects/1187836018/qoometer-finally-a-smart-usb-cable-charger-tester

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QooPow qualMeter XT

https://www.amazon.com/Charger-Quality-Tester-Advanced-Version/dp/B01LYJU6AG

https://www.kickstarter.com/projects/1187836018/qualmeter-xt-greater-experience-on-cable-charger-t

How about the YZXstudio QC2VOOC QC to 12-in-1 Flash Charger Adapter ?
https://www.fasttech.com/products/0/10048999/9654019-yzxstudio-qc2vooc-qc-to-12-in-1-flash-charger
https://www.fasttech.com/products/0/10048999/9654020-yzxstudio-qc2vooc-qc-to-vooc-dash-adapter

Soshine E3S -QC

https://item.taobao.com/item.htm?spm=a1z10.5-c.w4002-18303632919.81.46493f33ZQQ9ET&id=44324449964
Specifically the LeTV QC3.0+MTKPE version (note: this is the YZXstudio store).

Finally there might be a quality MTKPE charger with at least 2A output at 12V.

EDIT:
This one seem even better, it offers the full 2.4A at 12V with MTKPE and you can even change the plug type:
https://item.taobao.com/item.htm?spm=a230r.1.14.71.2b3913cfn0KxE4&id=560939934618&ns=1&abbucket=7#detail

Navilock Products 41501 Navilock Power Bank 10200 mAh 2 x USB Type-A female with Qualcomm® Quick Charge™ 3.0
https://www.navilock.de/produkte/S_41501/merkmale.html
https://www.google.com/shopping/product/9681614946625526968?prds=scoring:tps

Not a USB device but a 12V DC power adapter with UPS functionality using a standard 18650.

YZX usb meter is very good, but the price is too higher …
but RD (ruideng meter ) is cheaper and have more function.
for “”UM24C”:https://www.aliexpress.com/item/RD-UM24-UM24C-for-APP-USB-2-0-LCD-Display-Voltmeter-ammeter-battery-charge-voltage-current/32845522857.html?spm=2114.12010108.1000023.1.5aa25437tcldCc” and “”UM25C”:https://www.aliexpress.com/item/RD-UM25-UM25C-for-APP-USB-2-0-Type-C-LCD-Voltmeter-ammeter-voltage-current-meter/32855845265.html?spm=2114.10010108.1000023.3.39efe6d4UQtfqh”: , it can support PC software and android APP, APP can support 21 kinds languages
and
APP and PC software can export data by excel. it is easy to research the data…

but YZX meter did not have ,
For UM34C, it support USB 3.0 and Quick charge recognition mode:QC2.0、QC3.0、APPLE 2.4A/2.1A/ 1A/0.5A、Android DCP、SAMSUNG, support support OPPO phone VOOC, OnePlus DASH
Though UM34C and UM25C have Type-c port , but there is not trigger, only support type-c charge, not recognition

although for data or some function, it is not better than YZX meter, but for the price , it is already best …
for USB load, there are many choice , LD25/LD35
If someone need more cheaper meter, but colorful display, there is also choice
AT34

Waiting for everyone to discuss …

Hi HKJ

I would be really interested in your review of the Armytek Handy C1 pro. It looks like an excellent everyday or travel charger, at least on paper.

https://www.armytek.com/products/chargers-and-batteries/chargers/armytek-handy-c1-pro/handy-c1-pro.html

12 USD ? wawo , too expensive, in china , it is about 1.5-3 usd for this same things ….

I do not like is the $10 shipping charge.

Would love to see you review this one HKJ: https://www.aliexpress.com/item/LVSUN-QC-3-0-quick-All-in-1-phone-tablet-charger-laptop-adapter-with-type-c/32814356965.html

4 Quick charge 3.0 ports, 1type-c PD port with 60W output!

Dear HKJ

Would you be able to review this?

Also, after reading your testing methodology, I still cannot understand how you perform the “USB coding test” to determine if it has AUTO CODING capability or not. Is there some device that can test that?

Also besides using an oscilloscope, any way we can test the noisiness of the power supply?

Many thanks & regs

I have a problem testing 4 quick charge at a time and also more than 4 independent ports.

I have ordered one.

YZXStudio ZY1280 and ZL1100 are good for that, then scay for many protocols and list what is supported. Earlier I used a home made device that changed the voltage on the data pins, on the response I could see if it was auto coding.

A AC milivoltmeter, but bandwidth is important, something that just works to a few kHz is not good enough.

That’s the wrong thread for chargers - they have their own thread:
Review request for HKJ [Chargers] | BudgetLightForum.com

What kind of specs should have an oscilloscope for this job? I ask because the price for the cheapest is around 20 USD (DSO138) but I don`t know if is good enough.

You either have to use fully shielded setup (Cable from charger to scope is shielded) or you need to run you scope on batteries. I do the last and some of the noise is common mode noise from the charger.
The scope needs bandwidth enough, 10MHz would be fine for most cases and a input sensitivity that can can see the noise. I usual record two traces, the one I publish and another one with better sensitivity to read the actual noise level.

LCD USB Electronic Load Tester Module Adjustable Constant Current Resistance Power Battery Tester with Cooling Fan 35W 0.2A~3A
https://aliexpress.com/item/QC-2-0-3-0-triggers-35W-constant-current-Dual-adjustable-USB-electronic-load-data-cable/32868954432.html
(KKMOON DTU-CCL01)




180W Digital battery capacity tester power supply indicator dc 12V electronic load 18650 discharger resistor usb check test