Review request for HKJ [USB Power Devices]

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dodge_911
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HKJ wrote:
dodge_911 wrote:

I just saw there's a new version of the YZXStudio UPM : ZY1273.

http://www.ebay.com/itm/Colour-TFT-Dual-USB-Power-Monitor-YZXstudio-ZY12...

Haven't thoroughly compared specs though, but the major difference I see is USB Type-C instead of a micro-usb connector.

 

At first glance the specifications looks the same as ZY1270, but the display looks considerable smaller. This might be the only change and done to reduce the price. I have ordered one.

I just emailed Franky, I want one with bluetooth.

It'll come in handy when testing USB-C cables Wink

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dodge_911 wrote:

I just emailed Franky, I want one with bluetooth.


It’ll come in handy when testing USB-C cables Wink

You may want to consider getting one of these. The data it generates is great for determining cable quality.

http://www.totalphase.com/products/advanced-cable-tester-l2/

Its main benefit is it can measure the signal integrity in an abbreviated format if you do not have a 12Ghz scope. It can even measure pin-to-paddleboard resistance within the connector. But I do realize it might be a bit more expensive than most pro-users would prefer.

I have spoken with the creators of this and asked if they might consider making a “hobbyist” version. But the market is limited, so I do not know how well received that suggestion was. I directly cited the work you do here as an example of the benefits. But then you risk companies trying to use it for QC on production lines — as I’ve seen some companies use the YZX testers you cite.

(The 0.5Hz drift etc. you have the skill to notice, they do not. As a result engineering errors are made on consumer products. “Pass/No pass” syndrome.)

Here is a sample of the data it generates:

https://drive.google.com/open?id=0B2OJRSgNnm4GdmpVMTFLa1lGUHc

I share all data from tests I run. If you would like, would you be willing to incorporate that into your results table? I admit I’m a bit envious of how well you document your battery and cable results. They are very well formatted and presentable.

The only issue I see with USB-C is there are additional things to query (eMarker, certification lookups, length, active vs passive cables, etc) that are very difficult to document in a standardized format. So my own documentation is a bit lacking.

mcorp
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May I suggest the Olight UC Universal Magnetic USB Charger?

Looks to be a good travel charger for this travelling season periods. Beer

Some places that ships to the EU.
Fasttech
Battery Junction

The Lite Review (click for my Review website!)

dodge_911
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Nathan K wrote:
You may want to consider getting one of these.

Whoa! That's a nice bit of kit. A little above my paygrade, I fear.

It's a bit much for a homegamer like me, you not only need that, you also need an interface to go along with it, if I understand correctly.

Nathan K wrote:

I share all data from tests I run. If you would like, would you be willing to incorporate that into your results table? I admit I'm a bit envious of how well you document your battery and cable results.

It didn't start out that way Smile

It's mostly input from my readers that took the 'extendedness' of the data this far. They had some good remarks, which I incorporated.

On incorporating your data, lemme think about it some more.

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Kepling
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mcorp wrote:
May I suggest the Olight UC Universal Magnetic USB Charger?

Looks to be a good travel charger for this travelling season periods. Beer

Some places that ships to the EU.
Fasttech
Battery Junction

+1
I´m very interested in this.

Nathan K
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dodge_911 wrote:
It’s a bit much for a homegamer like me, you not only need that, you also need an interface to go along with it, if I understand correctly.

I say “Fie!” to that! Smile I’m technically a homegamer too. Just a lucky one. Please consider writing TotalPhase expressing interest and perhaps they can offer a restricted suite for less.

Actually, it runs a webserver and appears as a network adapter. You plug it in, it adds an NDIS internet IP adapter, and you type in the box’s private IP address and you do all work through the web browser interface on the box. It’s all self-contained.

The only reason you’d need any of those utilities is for firmware updates, which are free on the website. The only consumable is the box on the left. It is “only” rated for 10k connector insertions… and the box keeps track with a monotonically increasing counter. This is again to prevent fraudulent data from factories when the connector wears out. There are also adapters to cover A-to-MicroB and C-to-A etc. cables. Pins are pins.

Please let me know if you would like to know more about the specifics of what to look for in USB-C cables.

  • The important part is to independently measure the IR drop (resistance*current at max capacity of 3A or 5A) on the Vbus and GND pins. There are different thresholds for each. (500mV Vbus, 250mV GND) due to data signaling concerns.
  • All 4 Vbus and all 4 GND pins must be tied internally in the connectors/cable.
  • Some cables also bridge GND to the shield braid of the cable to get a “free ground conductor”.
  • Some get it backwards and use the shield braid for Vbus, which is VERY dangerous!! Especially if the cord frays.
  • Some connect the shell to ground, others keep it separate.
  • USB 2.0 cords are NOT supposed to have SBU wires
  • SBU1/2 wires are supposed to be “crossed over”, like the SSTX/RX pins.

If you just need to do continuity checks, here’s an open-source Arduino Mega schematic I created. It’s fairly crude however: it doesn’t do resistance measurements since I don’t know how to make it accurate enough.

https://github.com/Nathan-K-Public/cable-tester
https://plus.google.com/collection/YVyBSB

I apologize if I went off-topic.But I really want to help as much as I can.

HKJ
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mcorp wrote:
May I suggest the Olight UC Universal Magnetic USB Charger?

Looks to be a good travel charger for this travelling season periods. Beer

Some places that ships to the EU.
Fasttech
Battery Junction

Thanks for that, but do not expect a review in the near future, I have a couple of chargers in queue.

My website with reviews of many chargers and batteries (More than 1000): https://lygte-info.dk/

OscarM
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i hope you will continue reviewing blitzwolf powerbanks.
i pre-ordered one of their latest powerbanks:
http://www.banggood.com/Qualcomm-Certified-BlitzWolf-BW-P4-5200mAh-Quick...
do you think you will review it?
(i have the old xiaomi 4×18650 10400mah powerbank, and the single cell blitzwolf powerbank, but have been thinking about something in-between them as well, when this one appeared at a pre-order price of $12.99)

HKJ
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OscarM wrote:
i pre-ordered one of their latest powerbanks: http://www.banggood.com/Qualcomm-Certified-BlitzWolf-BW-P4-5200mAh-Quick... do you think you will review it?

Blitzwolf sometimes send stuff to me for review, I do not know if I will get that power bank.
Due to the amount of items I have in queue I will not be buying it myself.

My website with reviews of many chargers and batteries (More than 1000): https://lygte-info.dk/

hank
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for comparison: https://www.youtube.com/watch?v=3Hdn0MuCK_0
Familiar looking box with 5 USB ports, beware the clones …

he’s dissecting what appears a well designed board with decent separation between AC and DC sides but a dead short somewhere inside

Quote:

Horrific USB power supply fault. (Electrocution risk.)

bigclivedotcom

Nathan K
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May I ask how to donate equipment to you? I’d be interested in your opinion of the Belkin F7U005bt04-BLK illustrated here. (Comment split from BlitzWolf BW-C4 thread.)

https://www.amazon.de/dp/B01GUVNHS4/

Or I can ask Jen Warren (Global Director of PR, Belkin) to send you a sample. I presume they have their own warehouses nearby, and would appreciate a counter-point to my initial criticism of this charger when used with the Google Pixel (Sailfish model).

https://plus.google.com/102612254593917101378/posts/dgqeFSM19bd

Please let me know what option is best with you, and I will endeavor to get it to you!

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May I ask a review of the Xiaomi Dual USB car charger with Bluetooth? Xiaomi Roidmi 2S http://m.banggood.com/Original-Xiaomi-ROIDMI-2S-Dual-USB-3_8A-Dual-Mode-Bluetooth-4_2-Hands-free-Calls-Car-Charger-p-1042119.html

I wonder if they have correct overload protection.

HKJ
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joechina wrote:
May I ask a review of the Xiaomi Dual USB car charger with Bluetooth? Xiaomi Roidmi 2S http://m.banggood.com/Original-Xiaomi-ROIDMI-2S-Dual-USB-3_8A-Dual-Mode-Bluetooth-4_2-Hands-free-Calls-Car-Charger-p-1042119.html

I wonder if they have correct overload protection.

I will add it to my queue.

My website with reviews of many chargers and batteries (More than 1000): https://lygte-info.dk/

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Thanks! I have an older version and the Xiaomi car charger seems quite nice. I hope the inside is also good.

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Hi, if you could please review this charger:

Xiaomi charger

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dodge_911
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angerdan wrote:
It's similar to the Soshine E3S. http://www.soshine.com.cn/a674.aspx http://www.gearbest.com/chargers/pp_493560.html https://www.akkuteile.de/ladegeraete/soshine/innovative-soshine-e3-lcd-power-bank-ladegeraet-mit-1-0a-2-1a-usb-ausgang-und-lcd-anzeige/a-500803/[/quote]

I wouldn't call it similar, i'd call it a clone/oem/made to order model Smile

Tmart has it too, under their TLIFE brand. I did a video on one recently.

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HKJ
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dodge_911 wrote:

Tmart has it too, under their TLIFE brand. I did a video on one recently.

I have just posted a review of the TMart model: http://budgetlightforum.com/node/52222

My website with reviews of many chargers and batteries (More than 1000): https://lygte-info.dk/

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Thanks!

I found this USB charger, which is unusual/rare because of the horizontal orientated ports. This makes it useful for USB Voltmeters on each port Smile
just-mobile.eu/alucharge-eu.html

Link is already adjusted for Denmark Wink

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Well, this Satechi Type-C Power Meter seems to be making the rounds on some of the techsites I read :

But the $30 dollar pricetag seems a little high for a UPM without any form of logging or analysis like the YZXStudio's.

 

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Banggood sells a combination USB-charger with wall outlet. I doubt they are good, but a test would be interesting.
http://m.banggood.com/5V-2A-Dual-USB-Port-Wall-Charger-Adapter-EU-Plug-Socket-Power-Outlet-Panel-p-1107847.html

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I would buy a certified socket from a respected retailer in your country so you know it has passed all the safety tests.

 

I bought 4x UK USB sockets from china, I found that the earth connection did not make contact with the plugs earth pin at all on any of the 4, I contacted the seller and got a full refund and binned the possibly lethal sockets.

 

Buy quality when you are working with mains ac voltage.

 

John.

Maha C9000 – LaCrosse BC-900 – Floureon BT-C3100 V2.2 – Accumanger 10 and 20 -Thunder AC6 LiitoKala Lii-100 – Cozypony 24W Solar Panel – Soshine H4 – Soshine T2 – Soshine E4S

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Well for that price you have almost ever issues. I don’t know if a good one exists, the thing from Busch & Jaeger has below 1A and for the price of this http://www.amazon.de/dp/B018KM3QVE
you get two x6 Anker USB charger.

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angerdan wrote:
Hello HKJ, please consider the TOMO T4. Would be very interesting, since it allows the use of own cells. It’s similar to the Soshine E3S.

@HKJ
If you consider these, please very thoroughly test
- heat development (especially with one cell discharge)
- unbalanced charge termination and
- low discharge protection.

My Soshine E5 (aka TOMO V8-3) has serious issues in all these departements.
Gravest one: 2 cells in parallel went down to ~2.15V over night; I then tested with a single cell (just left in the case, nothing attached) and halted the test at 1.86V resting. Pretty scary.

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HKJ
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angerdan wrote:
Thanks! I found this USB charger, which is unusual/rare because of the horizontal orientated ports. This makes it useful for USB Voltmeters on each port Smile

I like the design of that one, but I do not like the price. It is a bit expensive to buy and just open up.

dodge_911 wrote:

Well, this Satechi Type-C Power Meter seems to be making the rounds on some of the techsites I read :

At the current time I cannot test advanced usb-c, i.e. I cannot test this. I might return to it when I have a setup that can handle the testing.

joechina wrote:
Banggood sells a combination USB-charger with wall outlet. I doubt they are good, but a test would be interesting.

I already have this one in queue.

joechina wrote:
Well for that price you have almost ever issues. I don’t know if a good one exists, the thing from Busch & Jaeger has below 1A and for the price of this http://www.amazon.de/dp/B018KM3QVE you get two x6 Anker USB charger.

I will probably also take a look at this one.

HarleyQuin wrote:

If you consider these, please very thoroughly test
- heat development (especially with one cell discharge)
- unbalanced charge termination and
- low discharge protection.

My Soshine E5 (aka TOMO V8-3) has serious issues in all these departements.
Gravest one: 2 cells in parallel went down to ~2.15V over night; I then tested with a single cell (just left in the case, nothing attached) and halted the test at 1.86V resting. Pretty scary.

I have already published the review of the TLife version, it did not have all these problem.

My website with reviews of many chargers and batteries (More than 1000): https://lygte-info.dk/

angerdan
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HKJ wrote:
angerdan wrote:
Thanks!
I found this USB charger, which is unusual/rare because of the horizontal orientated ports. This makes it useful for USB Voltmeters on each port Smile

I like the design of that one, but I do not like the price. It is a bit expensive to buy and just open up.

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angerdan wrote:
Registering for the newsletter brings a 15% coupon.
http://www.just-mobile.eu/newsletter-subscribe/

22% off for valentines day with code JM201702 (valid 08.02 – 14.02.).

Also i’d find a sketch of the layout of the JustMobile AluCharge.

HKJ
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angerdan wrote:
Also i’d find a sketch of the layout of the JustMobile AluCharge.

The layout may not be safe, but these drawing are usual not very precise (Problem may be spacing between high/low volt at the transistor and rectifier). Some yellow tape will fix this (There will probably also be some around the transformer also).
What they have illustrated is fuse, two (probably) common mode coils, safety capacitor, switcher controller and transistor. The rectifier diode looks a bit strange with too many pins.
Bridge rectifier and opto coupler is probably on the other side.

With the discount it was “only” €56

My website with reviews of many chargers and batteries (More than 1000): https://lygte-info.dk/

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I’m still not sure what I can buy to “play” with my usb-c devices. Any suggestions?

Seems there are many USB dummy loads and current meters but when you go USB c they get sparse.

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