KJ - Kay Jay I USB Tester COMPLETE Overview

Рет қаралды 6,823

Күн бұрын

Would you like to test power adapters, cables, phones, tablets, and power banks? I'll show you what you can buy and how to use it to test them all.
00:00 Intro
00:57 Unboxing
04:14 Everything you get
04:26 Tester Setup
05:32 Tester Overview
10:14 Settings
14:00 Power Adapter Test
19:24 Cable Test
21:18 Power Bank Test
26:38 Fast Clicking
28:09 The Two Arrows, what do they mean?
28:29 Micro USB Adapter for PD (Power Delivery)
31:30 Outro
This video is not sponsored.
(( All links are non-affiliate links ))
Kay Jay I USB Tester amzn.to/46oCEJs
Apple 5w USB A Charger A1385 (Discontinued)
Apple 20w USB C Charger A2305 bit.ly/3ujaB0J
Apple USB C to Lightning Cable 1meter amzn.to/3MRYkHf
Samsung 15w USB A Charger amzn.to/3MLNrX9
Cable Matters USB C to USB C Cable amzn.to/3sIbUWK
Goal Zero Venture 70 Power Bank (Discontinued, Replaced with Venture 75)
Goal Zero Venture 75 Power Bank bit.ly/3uwb8fO
Be sure to like, subscribe, and hit the notification bell to be notified of future content.

Пікірлер: 103

@jcadag8789 6 ай бұрын

This is the most complete review that i I have seen so far and I almost know all what this tester like I bought it and I'm using it. Nice. I did not get confused. I like that you use the word page instead of next display and it is very relatable. Nice! It's like I bought it already and I've been using for quite a while after I finished the whole video. Nice work! Great! You honestly want the viewers to understand and not get confused.

@YourMobileTech 6 ай бұрын

I'm glad you found the video helpful and thank you for taking the time to comment. Happy holidays!

@DarkPassenger_777 Ай бұрын

Wow! I was not expecting this level of detail when I clicked on this video. Thank you!

@YourMobileTech Ай бұрын

I'm glad you found the video informative. Thank you for the comment.

@kenalexander7614 14 күн бұрын

That was great vid. Very informative with minimal production or self promotion. Excellent job!

@YourMobileTech 14 күн бұрын

Thank you. I appreciate the comment.

@thodkinson84 6 күн бұрын

Excellent explanation. I came here looking how to measure the capacity of my 20000mah power bank. Thank you!

@YourMobileTech 6 күн бұрын

@@thodkinson84 I'm glad you found the video helpful. Thank you for the comment

@Jason-ut8iu Ай бұрын

You did a good job. I've watched about 15 videos on the topic. You gave good information. You talked at a good pace with not a lot of fluff. You were about in the middle. Some people had more polished videos, but your content was good and your flow was also good. Hopefully, you stick with it. I liked and subscribed.

@YourMobileTech Ай бұрын

Thank you for the comment and the constructive criticism. I appreciate it.

@Jason-ut8iu Ай бұрын

@@YourMobileTech The truth is, it is not criticism. You have a lot of substance to your video. I appreciated it very much.

@YourMobileTech Ай бұрын

@@Jason-ut8iuThank you. I will keep at it and I will get better.

@wt9653 2 ай бұрын

Cool! You're the most informative video so far. I bought a new 2023 Honda Ridgeline. The Android auto wouldn't work. I'm using the same USB cable from the Honda CRV. It worked fine right before I traded the car for the truck. What I noticed is that the USB data port charges the phone very slowly to no charge at all. The phone charges fine by using a USB adapter from the 12v socket. I was planning on ordering a USB port tester after watching some KZfaq videos. I found yours😊

@YourMobileTech 2 ай бұрын

Thank you for your comment. In my car, the USB port is for audio only. To connect my phone or other device to my car to provide a source of music. I am thinking that's the same case with you.

@wt9653 2 ай бұрын

@@YourMobileTech Any vehicle that has a feature for Android auto or Apple car play has a separate data/charge USB port. I'm not sure if my USB has an option to play music? When I plug a cable to my phone. It responds that it's plugged in. But it barely charges the phone. It only charged 3% in 120 miles of driving. Using the USB adapter to the 12v socket charges at normal around 10% per 15 minutes. Slow adapter.

@TimeForLifeTravel 5 ай бұрын

Exceptional video! You not only answered my questions about the product, you also cleared up many questions I had about USB testing in general. I learned a lot. Thanks!

@YourMobileTech 5 ай бұрын

I'm glad you found the video informative and useful. Thank you for taking the time to comment.

@durascvc7021 5 ай бұрын

Thank you for a straight to the point, clear and information packed video. Everything was presented in an orderly manner, I really appreciate that. Subscribed and looking forward to more content.

@YourMobileTech 5 ай бұрын

You're welcome. I'm glad you liked the video and thank you for taking the time to comment.

@Bons_Eye 4 ай бұрын

All that information provided from such a small device. Fascinating. Thanks for sharing.

@YourMobileTech 4 ай бұрын

Thank YOU for taking the time to comment. I'm glad you found the video informative and useful.

@DnB925Art 2 ай бұрын

Thank you for your very insightful video. When I bought my tester it did not come with any instructions. So watching you break down the tester was very helpful. I learned a few things that I couldn't figure out on my own, so thank you again!

@YourMobileTech 2 ай бұрын

It's my pleasure. I'm glad my video was helpful. Happy testing!

@phillane8915 5 ай бұрын

What a fantastic video, everything was explained so clearly. Super helpful!

@YourMobileTech 5 ай бұрын

My goal is to always provide informative and useful content. I'm glad you liked the video. Thank you for the comment.

@richardchabot7718 7 ай бұрын

very good video. well explained, clear . Thank you. you are good.

@YourMobileTech 7 ай бұрын

Thank you. I appreciate the comment.

@larryclark1518 5 ай бұрын

Excellent clearly laid out information here❗️ For someone like me, who is not well-versed in electronics, this fulfills my need so that I may actually be able to investigate my equipment with this analyzer. Thank you❗️

@YourMobileTech 5 ай бұрын

I'm so glad my video was able to be of some help. That us always my goal. Thank you for your comment. I appreciate it.

@andrewpetley7008 19 күн бұрын

clear and thorough, thankyou

@YourMobileTech 19 күн бұрын

Glad you liked the video and thank you for commenting.

@SheltonDCruz Ай бұрын

Brilliant presentation!

@YourMobileTech Ай бұрын

Thank you, glad you liked it

@3ma7med 2 ай бұрын

Thank you, very detailed review, very much appreciated.

@YourMobileTech 2 ай бұрын

My pleasure. I'm glad you like the video

@ianm1470 3 ай бұрын

Very precise and informative ~ many thanks

@YourMobileTech 3 ай бұрын

My pleasure. I'm glad ypu liked the video.

@nprado664 Күн бұрын

Amazing explanation! Thanks from Brasil!

@YourMobileTech Күн бұрын

@@nprado664 Thank you for the comment! Much appreciated.

@cardinalquack8624 5 ай бұрын

Very informative, thank you!

@YourMobileTech 5 ай бұрын

You're welcome. My pleasure.

@yyfong 4 ай бұрын

Good review!

@YourMobileTech 4 ай бұрын

Thank you!

@GGMan 4 ай бұрын

Thanks for you in depth review of the product. I sometimes use phone to charge to my watch - so that usb c dongle could be handy there

@YourMobileTech 4 ай бұрын

My pleasure. You're absolutely right, that would be one use of the USB C dongle. Thank you for taking the time to leave a comment.

@bend6496 20 күн бұрын

Thanks!

@YourMobileTech 20 күн бұрын

My pleasure

@PekPiu Күн бұрын

Good video, but next time, take the protective film away from the measurement device front and back. That film is just for protection during transportation. The display gets a lot easier to read withuot the packaging. The USB-C female coupler is needed when inputing USB-C power from a power source that does not have a detachable USB-C cable, such as Lenovo laptop power adapters. Beware of the USB-C couplers that do not carry data, those cannot do any of the fast charging negotiations, so stick with the quality ones.

@YourMobileTech Күн бұрын

@PekPiu You're right. I should have removed the protective film. I haven't found a use for the coupler yet. I plug USB C power adapters directly into the tester but I appreciate you taking the time to make a comment and offer your insight. Thank you.

@Shooter_D6 2 ай бұрын

Hello, thank you for the amazing breakdown review. I was wondering how many USB a and c protocols this product can recognize on that second page?

@YourMobileTech 2 ай бұрын

As far as I know, it detects VOOC, SFC, PD, QC, and FC.

@bsimpson6204 2 ай бұрын

What a brilliant review, I'll keep this for reference, thank you Btw, it's available on Temu deliverd to the UK for £15

@YourMobileTech 2 ай бұрын

Thank you for the comment. I'm glad you enjoyed the video. And thanks for letting me know about Temu.

@JoeMaloneOnTheMoon 4 ай бұрын

I used the usb C adapter as a female to male adapter then could plug it into the female type C input. Sorry if I'm repeating. A great video! Thanks.

@crazypict 5 ай бұрын

The USB C coupler can be used with USB C chargers that have a fixed mounted cable. Such chargers have a cable with a USB C male plug to connect directly to a device. If you should connect such a charger to the USB tester then you need the USB C coupler to connect it to the "Type C input" on the USB tester. USB C is a nice invention. But it is a mess with all those USB C cables, chargers etc. that do not work as they should. So, I will probably order the USB tester. Nice video! 👍

@YourMobileTech 5 ай бұрын

You make a good point. Thank you for your insight and your comment.

@shtaketbuhlov427 2 ай бұрын

Thank you for the detailed review of this tester and for one thing I would like to say a huge thank you to the USA for helping Ukraine, we really appreciate it, may GOD protect you and your country, peace, goodness and all the best !!!

@YourMobileTech 2 ай бұрын

You're welcome. My pleasure.

@donhuangny 5 ай бұрын

Great information. What if you USB C coupler is used to test the charging cable from PD (Power adaptor -> USB C cable -> Coupler -> Tester -> USB Cable -> Devices at the same time to max load it (power draw simultaneously) if you don't have devices that draw max power, like to test a 240W cable. Also, can you test cable for data transfer speed on this tester?

@YourMobileTech 5 ай бұрын

I am not quite understanding what you mean. If you PD>USB C>Coupler>Tester>USB cable>Devices, I don't see where the 2nd device is connected for simultaneous draw. As far as data transfer speed, the tester will not display an actual numerical value, but it will tell you which PD protocol it detects FC, SFC, etc.

@miketgb179 5 ай бұрын

Nice video, well informed. I am going to take a guess at the use for the C type adaptor you found no use for is to turn the type c input to female as most usb c leads are male both ends. So from a type c charger you can then have a usb c male/male lead plus adaptor to the tester usb c input. I would much rather have a type C or A flying lead across my workbench and have the mains charger firmly plugged into the wall socket than have a mains fly lead across my workbench, though in your case I understand why you had the lead there. Again well done on the video.

@YourMobileTech 5 ай бұрын

Thank you for taking the time to comment. I appreciate your thorough input and perspective on the usb coupler.

@0202fabrice 3 ай бұрын

Something very unusual about the micro-USB 'adapter' - when it's plugged in, you can have power input on USB-C port and power output the USB-A port. Not at all obvious, right? AFAIK, none of the vendors mention that.

@YourMobileTech 2 ай бұрын

Thank you for your comment. I like the device but I am not a fan on the included documentation. They're is a language barrier and I feel that contributes to the misinformation or admission of some details.

@mr.t361 4 ай бұрын

Great Video. I have my tester but with no discharger (different company)🤔. I will start and check cables, but how without discharger how can I check power banks?

@YourMobileTech 4 ай бұрын

I'm glad you liked the video and thank you for your comment. The purpose of the discharger is to provide a constant load on the power bank. You can use a phone, tablet, USB fan, light, etc. The only thing with that, is you may have to jot down how much power the power bank provided to each device and then sum the totals.

@ThePandaPhotographer 3 ай бұрын

Nice vid and I also use one as well

@YourMobileTech 3 ай бұрын

It really does come.in handy. Thanks for subscribing as well.

@bennylloyd-willner9667 4 ай бұрын

Good video. I went all in tho, and ordered a Fnirsi FNB58.

@YourMobileTech 4 ай бұрын

Thank you. Ironically, I was thinking of buying that one, too, and comparing the two testers.

@bennylloyd-willner9667 4 ай бұрын

@@YourMobileTech I think the Fnirsi is even more versatile with Bluetooth and software for both phones and PC, but they don't play in the same price range, for sure💸 😁 Would be interesting to compare their accuracy in the features they share tho.

@YourMobileTech 4 ай бұрын

@@bennylloyd-willner9667 Exactly what I was thinking.

@hockey_now Ай бұрын

Thanks for the video. Without connecting a load, can this tester poll a charger/powerbank to determine what charging protocols/voltages it is capable of outputting...? And secondly, can it poll a device and determine what input charging protocols/voltages it is capable of receiving?

@YourMobileTech Ай бұрын

I do not believe you can poll a tester without a load. Reason being, the tester can identify most charging protocols but it is the device that "requests" the protocol. The best place to find the information you seek is to go to the manufacturer's website and look at the specs. I believe this is the case for both scenarios you mentioned.

@hockey_now Ай бұрын

@@YourMobileTech FYI, (and for anyone else looking for this feature) just found someone on another channel that demonstrates the FNB58 USB tester can poll a charger to determine it's capabilities.

@YourMobileTech Ай бұрын

@@hockey_now Ironically, I was going to purchase that tester next

@genesis0x0 12 күн бұрын

Thank you for this excellent video! I need to test a bunch of Samsung power adapters rated at 9V 1.67A. Can I use the load tester set at 2A to test the power adapters or do I need to use a Samsung phone like in your video to properly test 1.67A? Thank you!

@YourMobileTech 12 күн бұрын

Thanks for commenting. Samsung power adapter rated for 9V 1.67A utilize PD (Power Delivery) protocols like FC SFC VOOC, etc. The load tester that comes with the tester has no such protocols. You need to use any device that is capable of pulling 18W using PD protocols. Samsung, iphone, pixel, etc. I believe I demonstrated this in the video. I'll find the timestamp and reply with it.

@YourMobileTech 12 күн бұрын

Take a look at 18:00 to 19:25.

@YourMobileTech 12 күн бұрын

Ok, just to be sure I was NOT giving you incorrect information, I grabbed the exact same tester and tested it. I was correct. With the load that comes with the tester (no fast charge protocols) you will get 5V and 2A. With my Galaxy S23 Ultra, the same charger stepped up to 9V and 1.67.

@genesis0x0 11 күн бұрын

@@YourMobileTech Thank you for taking the time to check and answering my question!

@YourMobileTech 11 күн бұрын

@@genesis0x0 You're welcome. My pleasure.

@oscarlabutte 4 ай бұрын

Hi Kay. I m a first time viewer of your channel. Thanks for the video. Although I’m an electrician, I’m not 100% familiar with usb protocols. Curious about one thing. In I think the second test you did, where you used the newer Apple 20 watt block and plugged in the load set at 3 amps. You mentioned that the reason the tester showed only 15watts as opposed to the 20 watt that the block is rated at, is that the load was “primitive” or something to that effect. I could be wrong but I was thinking that the reason would be that the tester is showing 15watts because that is indeed the wattage, and this would be because the load , with the setting at 3 amps, is designed to limit it at that, and since the applied voltage is 5volts, the wattage will be 15watts. Am I missing something? My apologies for the long comment.

@YourMobileTech 4 ай бұрын

Thank you for the comment regardless of how long it is. It's appreciated. The power adapter can provide 20 watts of charging, however the charger is limited in two ways. 1, the load discharge device does not have any fast charge protocols such as VOCC or PD installed on it, which, by today's standard, is primitive in design. 2, a USB A cable is limiting as well due to the amount of pins it has. USB A has one power and one ground pin, whereas USB C has four power and four ground pins which provide more amperage and thus more power. I hope this answers your question. If not, feel free to leave another comment.

@careemntb 5 ай бұрын

Super, no bullshit. love from srilanka .

@YourMobileTech 5 ай бұрын

Love the comment. I'm glad you liked the video

@DarkPassenger_777 Ай бұрын

My device keeps restarting when I plug in a specific cable. What could be the potential issue?

@YourMobileTech Ай бұрын

One potential issue could be that the cable itself is damaged. Try the same cable with a different device, if possible, and see if the same thing happens. Or inversely, try a different cable and the same device. Keep me updated.

@DarkPassenger_777 Ай бұрын

@@YourMobileTechIt's definitely the cable. Switched everything up, every other cable work's fine.

@TheIsasin 3 ай бұрын

How do i test capacity of my phone battery? Do i discharge to 0 and then charge to 100 and read mAh? Do i have to multiply this to get my result?

@YourMobileTech 3 ай бұрын

Hi. You cannot run power through your phone so you would need to charge to 100% then plug in the usb tester, and then place a load on the tester. Take note of the charging voltage. When the phone turns off, plug the tester into a power source and read mAh and multiply the mAh by the appropriate multiplier. As an option, you can set the multiplier in the settings and the tester will calculate it for you. Hope this answers your question.

@TheIsasin Ай бұрын

@@YourMobileTech Yeah, thats the best way to do it i think but there is a problem with apple phones... they dont have reverse charging function and phone i want to test is an iphone, thats why im trying to measure mAh from charging the phone, but im not sure if it is authoritative tbh

@YourMobileTech Ай бұрын

@@TheIsasin Which iphone do you have? Reverse charging was introduced with the iPhone 15.

@TheIsasin Ай бұрын

@@YourMobileTech I need to check battery from iphone 12

@skyecloud968 4 ай бұрын

For second I thought mine was broken when I connected the USB-C to able by itself and it was an android one. Good to know it is not broke and that I need to use apple cable to get it to work to test if the cable is the problem or not. Still sucks how it is like that. It is like they are picking favorites not cool for what you paid for.

@YourMobileTech 4 ай бұрын

I found that a bit weird myself. I'm glad my video was able to help you sort it out.

@SDWNJ 4 ай бұрын

The USB-C coupler would allow you to use the tester with a laptop power supply that only provides a USB-C male output.

@YourMobileTech 4 ай бұрын

Good point! Thanks for commenting.

@0202fabrice 3 ай бұрын

@YourMobileTech I tried to use one of these with Lenovo USB-C power supply cord, w. male plug, into the reader USB-C output port. It did not like that! Black screen, no turn on, etc. Thought it was bricked, gave it up for dead. Couple days later, playing around, I put the micro-USB adapter in the reader, and used USB-A input and USB-A output, and it came back to life! ?? Returned to original config, which was between 140W Apple MBP M1 Pro power supply (into USB-C IN), with USB-C OUT to the computer. Then that worked again, too. So far, no documented explanation.

@YourMobileTech 3 ай бұрын

@@0202fabrice Hi. Thanks for commenting. From what I understand, the input and output connections on the tester are unidirectional. That would explain why applying power to the output side may have caused the tester to glitch and malfunction. Placing the USB A input and output correctly seemingly reset the device. Which is good news because, otherwise, you were correct in assuming it might be bricked. Let me go grab the manual and see if we missed anything... ...Ok, so according to the instruction manual it states "You can use the input as the output and change the current direction, but the voltage and current would be wrong. (Only supports charging your device)" So you can charge your device bidirectional but the test readings will be inaccurate. After what you described to me, this should say, "Switching the direction of the current flow is not recommended." At least, that's what I think.