ANOTHER BATTERY CAPACITY TESTER HOW TO USE + TEST !!

In this video I do a full in depth review of a chinese battery capacity tester, testing for real amp hour rating, and watt hour rating. I show you use it and how to adjust the voltage setting. I hope you find it useful.
Here is my last video !!
• MAKE THIS USB LED LIGH...
Here is my video on my "OTHER" Battery capacity Tester.
• BATTERY CAPACITY TESTE...
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[@BeachsideHank]

I just dumped all the other video bookmarks I had regarding this particular tester, no one did an instructional review better than you- thanks for sharing your expertise. ☺

[@ehobbyguy8980]

Thanks for the positive review ! I appreciate it.

[@muimasmacho]

Excellent review!!! This format should set a new standard for all youtube celebrity wannabes. Short - concise and pertainent. No crappy music, and you stuck only to those things which are relevant, without unnecessary fluff. And, you did it without redundancy. Can't improve on that! Kudos my friend!

[@ehobbyguy8980]

Mui MasMacho thank you very much I️ appreciate the feedback. Thanks for watching!

[@rafaelmarroquin4429]

Gracias excelente demostracion, lo que me ha gustado de este modulo que tambien nos muestra codigos de error en caso algo falla; puse una bateria con 2v2 y efectivamente me mostro el mensaje de err2: Error Codes Err1: Battery voltage greater than 15v. Err2: The battery voltage is lower than the specified termination voltage. Err3: The battery is unable to withstand the discharge current (too much sag?) Err4: The discharge current is >3.1A.

[@brannenthompson9662]

Great point about the micro usb power port I'm leaving a cable plugged in and plug in and remove at the other end as I'm sure everyone has a spare cable .

[@davidbrown9278]

A really excellent clear explanation of how the tester works and how to use it. Well done Mr E Guy!

[@ehobbyguy8980]

David Brown thanks !!

[@davidbrown9278]

Your welcome. Are you doing a video on 'the right way to test', as promised at the end of this video?

[@redavis1973]

I agree with Beachsidefrank and found this video to be much more informative than any of the other videos I watched on how to use the ZB2L3 cap tester

[@ehobbyguy8980]

redavis1973 thanks for your feedback and thanks for watching!

[@DrZipZwan]

Like others said, your video is the best I found about this 18650 capacity tester!! clear and treat about the most important stuffs. I mounted 2 ceramic resistors of 10W 100ohm (in parallel), for the testing instead of the 5W provided. What do you thing? my testings are going to be accurate?? I'll be using it to test 18650 battery from old laptop pack. thx for any support.

[@Pyridox]

Thank you for the review. I bought one of these capacity testers for my 18650 lithium batteries, and your video was very helpful. A lot of the cheaper batteries have exaggerated Ah ratings, for example 5000 Ah which actually turn out to be only several hundred Ah.

[@ehobbyguy8980]

Pete Ciallella I’m glad it was helpful. Thanks for watching!

[@johnberry5339]

Hi Paul, another very interesting video. I am tempted to get this cheaper tester but I will wait for your next tutorial on how to check them properly. I have a few things that run on rechargeable batteries of varying quality, and it would be great to know how long my led clock can run or my led lamp etc, and which batteries are past their best. Thank you. John.... :)

[@LatinDanceVideos]

I've seen another test showing 3 of 7 ohm resistors in parralel. Nice test.

[@spacedusty]

I enjoy watching this, since this is educational. I have a question, is it accurate enough?

[@g.l.5970]

Hi. Very usefull video, thank you. I have a question: can i test single NiMH batteries with it? If yes, at how many Volts should the test be stopped. I guess 0.9 V but i am not sure.

[@evahle]

Very nicely done. Thank you!

[@ventura5072]

Great video simple and straight to the point

[@ehobbyguy8980]

Billy Rodriguez thanks for the compliment and thanks for watching!!!

[@hansdegroot652]

thx. I got stuck with the voltage settings. Youre example told me what to do. Funny little testers for the price.

[@anthonyalleyne8724]

Great video! OK saying that you used the 18650 and did the test and get 700 mah , but the said 18650 didn't have any information written on it, how can you tell the overall mah of the battery? Is it a 1500, 2200 mah battery?

[@adedayososina7801]

Thanks for this video, I now know how to operate my new 18650 capacity tester

[@sammy-pp1gl]

Hi, Good video , is the capacity suitable for single battery or multiple up to 4cell , your advice please

[@robertacton2033]

I watched some Chinese guy(I think) demonstrating how this works, without speaking. I think I got the point. Your video was additional piece of mind. I have two of these on route from China. Is it possible to to do this test without the tester using a single cell BMS connected to cell for the drop off, resistors and a clock battery connected through a relay?

[@E-BikingAdventures]

Excellent video. Very detailed.

[@MarianCobirlie]

Hi I compared the batteries on charger xtar vc8 and then on these zb2l3 and the values ​​are close. I recommend these capacitors but it is good that the batteries are charged and discharged then measured again

[@__WJK__]

Good video... how about building or reviewing a device that can test the "true" mAh capacity of aftermarket cellphone batteries(?)

[@rosekreuze]

i have the clone variant model HW-586. are the resistors can handle that much heat or does it require fans for heat dissipation? i don't have the temperature tester which was supposed to be included in the package but i only recieve the battery tester. what a bummer! also, can we use this to a larger pack? i have a 4s 10p i wanted to test

[@realist8774]

Dear EHobby Guy, Can I use this particular board to test AA rechargeable batteries? Which resistor should I use?

[@brandedpc]

hi very good instructional video . can you pl. explain why does the voltage goes up to 3.68 volts although we have discharged the battery to 3.0 v

[@ehobbyguy8980]

Lalit Mohan it just a natural reaction of the chemistry involved. I know that’s not a great explanation. I am not really a chemist. It does show that you will get much greater battery capacity with intermittent use because of this phenomenon. Thanks for watching!!

[@zaferibrahim]

Hi Ty for thise videos I want to ask you about this tester Can I use it to test 12 V batterie 6 Am And what is the siting for it ? Thanks

[@ponkuna]

My one month problem is solved by you in this video.Thank you and I became your sobscriber.

[@ehobbyguy8980]

kuna thank you for your support and thanks for subscribing!!!

[@KurtBarcelona]

Does it also charge the battery to the full capacity like 4.20V?

[@saleemkader2126]

I have compared this one with opus 3100 there is a big difference in readings. Please could you compare them and make a video. i dont know which is correct.

[@milvolts1]

Big thumbs up on this tutorial. How would I wire up to a 4 battery case. To check more at a time .Thanks

[@ehobbyguy8980]

mario sellet thanks for the feedback. If you are looking to add battery capacities, batteries would have to be wired in parallel. If the batteries are wired in series, the capacities will not be added. I️ hope this was helpful! Thanks again.

[@milvolts1]

EHobby Guy sorry if I didn't word my question correctly. How would I wire 4 of these together so in turn I would get 4 capacity readings at one time. Would that be in series? From all the Noons. Thank you for replying.

[@ankanbaranchowdhury8669]

Please Tell us how to know accurate mah of a 18650. How to match with the written mah from the manufacturer

[@johnreno3762]

Good information no dumb music clear voice Thank you

[@frankl1955]

Great video, thanks. I get a kick out of the battery rating of 5000 mAh, that's hard to believe for 18650 to begin with.

[@ehobbyguy8980]

Thanks for the feedback. I appreciate it!

[@AntKardano]

thank you for this review so much man

[@alwayscan21]

jamir you are welcome. Thanks for watching!!

[@ankanbaranchowdhury8669]

How to check whether the manufacturer had printed a correct mah in the battery label? Eg: 3000mah or 2600mah

[@mansonbelvederegsm898]

Have you tried testing li ion phone batteryes with this?

[@jamest.5001]

so how accurate is it? does it show true a.h. and does it show similar in repeated test?

[@farisikhmal4868]

Can this module discharge 3s lipo battery ? And how long does it takes to achieve 3.7V

[@gunboundvegamoron]

Thanks it helps me a lot

[@sammy-pp1gl]

Hi , your video explanationis very good and clear , very useful . can you put up a video on how to use charge /discharge board SKU.. BU0572 ..tks Paul

[@ehobbyguy8980]

sammy thanks for your input. That’s something that I will add to my list. Thanks for watching!

[@sammy-pp1gl]

Hi Paul thanks for your swift reply , I preffer to watch your video as it,s more details and your reply is super fast ..tks pal

[@manniom]

Man, that micro USB connector SUCKS of how weak it is. I ordered 10 of this testers and only by simply disconnecting the micro usb cable 3 of them ripped out the female connector from the board. Very good you called everyones attention to that. Wish I had seen this video before. Regards!

[@riderrohit5957]

What is minimum cutoff voltage we can set in this module?

[@michaelo2l]

I know there are other methods but I'd be more inclined to stick with this fixed resistive load method as it betters mirrors real world usage...

[@027fuckoff]

This may be a stupid question but.. How long does it take per battery on average? Also can you replace the resistors to a usb charging module to charge a phone?

[@hoglundh]

Great vid.

[@typingcat]

Well, why not use an extension cable, so that you plug/unplug from the other end of the extension cable whilst the extension cable is permanently attached to the tester?

[@PalmHQ]

+EHobby Guy, thanks for this helpful video. I have one of these and have been using it extensively. However, I found another video that calls its accuracy into question. You said in this video around 7:25 that these results were "consistent" with the previous device, but in that video battery #1 did 444 mAh and battery #2 did only 163 mAh, so I'm a bit confused. Do you have a sense of how accurate your results were with this module, in terms of absolute accuracy?

[@ehobbyguy8980]

Thank you for your comment. I did not do any real accuracy measurements on the tester. I am working on a video to build my own battery capacity tester, and use it to compare the 2 testers I reviewed and IT, using the same batteries. When I said the results were consistent with the previous device, I was just recollecting roughly in my head. Again, thank you for watching, I hope this was helpful. I appreciate your feedback!

[@MyatTunGyi]

Why using 5v 7.5 ohm resistor? Do you know the equation for calculate? Can I use other kind of resistor?

[@sephirothbr]

Thanks for your video!

[@ehobbyguy8980]

sephirothbr thank you! I appreciate the feedback

[@markgreco1962]

I subscribed thanks

[@Harry001by7]

What happens if we gonna discharge voltage set to 2.5v ?

[@2012revolution]

What capacity is wrote in the battery label?

[@ibringthelastwords1358]

Can I also test other batteries aside from 18650? thanks

[@irishguy200007]

Will this just test single cell Li-on batteries.

[@toadjt1971]

I see all batteries tested on these testers are 18650. Is it possible to test others like 18350 and 21700? Great work on your videos!

[@handydudediyetc..2066]

Great video very educational keep up man

[@ehobbyguy8980]

Tabazki Gonzaga thanks for the feedback, I appreciate it, and thanks for watching!

[@handydudediyetc..2066]

Actual i buy one of those i hunt power bunk on garages sales for my power wall i have a 20watts ,100watts and 3.5watts solar pannel this device is a major help

[@devjitpaul1191]

Why the voltage jumps to 3.6 after discharge?

[@ifell3]

Great review, not something you feel you should have to do,, but could you not get a male to female usb lead?

[@pulesjet]

I have a number of these testers. DO NOT connect in reverse polarity. LOL, yea I tested it. The flipping things have more then doubled in price. Wish they could be employed at higher voltages. You can get around mitigating the Dropping voltage issues by using a CC/CV PSU module as the load.

[@ehobbyguy8980]

pulesjet thanks for the tip. Thanks for watching!!

[@superdau]

Did you ever check the values the tester measures and calibrate the tester? If you hold down all buttons on power up it goes into calibration mode. I think you are supposed to connect 10V and 200mA to it in two steps (the display goes through "0A0u", "10.0u" and "200A"), but I never did that (and hope I did not mess up the calibration by not connecting anything while going through these steps).

[@ehobbyguy8980]

I have not done that. I might have to check that out! Thanks

[@francobergonia1221]

How to calibrate that

[@migsvensurfing6310]

Almost correct it is 10V and 2A but mine was very well calibrated when I received them. To check just apply a known voltage and current and read what it says.

[@powerbatterychannel4315]

I have calibrated the device; now it writes Err4, but the current is normal. Do you know how to restore factory settings? Thanks

[@Electronieks]

Instead op 18650 can i connect a powerbank@5v and set the dropout to 4,1v ?

[@ehobbyguy8980]

v12345vtm Yes I️ don’t see any reason why you can’t. Try it and let me know how it goes. Thanks for watching.

[@Planespotterdude]

Very good video. I bought one on amazon, no instructions

[@MrRasselkhan]

have broken mini usb port can u help how can i join it again

[@drwhowhogrub3908]

Great video thanks

[@ehobbyguy8980]

Thanks for your comment, and thanks for watching, I appreciate it.

[@cbic9806]

18650,my battery starts at 3.85, The P voltage is set to 3v, when I press ok it starts. I get .819 amh discharge rate (2 resisters in) BUT the volts says 3.08. It ends quick and I get a battery with .0015 mah. Sometime I get the message Err3 . Help needed. Thanks

[@ehobbyguy8980]

c bic I would say that you should put the resistors in series to lower the discharge current and it may yield a more accurate result. Putting the resistors in parallel reduces the resistance and increases the current. The older the battery and the more cycles it has gone through reduce its capacity. I hope this was helpful. Thanks for watching!!!

[@sammy-pp1gl]

Hi Paul, I have ordered the TP4056 and now intent to combine this tester to it ,is it posible to do so or i need other board to add on to make it work ,, i have subscribed to your channel ,n your valuable advice please

[@ehobbyguy8980]

Hi Sammy, I am not sure what you are trying to do. The TP4056, depending on which model controls charge and discharge of the 18650 batteries. The tester in this video tests for battery capacity, So if that's what you are trying to do, then great. Again thanks for watching!!

[@sammy-pp1gl]

Hi Paul thanks for the swift reply.hope to see more other battery charger diy ..

[@hssssssssssss]

Is this cheap tester readings accurate?

[@TheAsbrooks]

Great review.. How long did the test run for? If the resistance were increased, would that cut the test time?

[@IntoxicatedDriver]

No, the opposite. Smaller resistance results in higher discharge current, draining the cell more quickly.

[@genezius]

super, thank you

[@sammy-pp1gl]

Hi Paul i tried to charge my battery with this charger ,with two Resister connected togerther , But charger read as as errer 3,, but only one battery did complete the caharging . What does the errrer 3 means . youradvice please tks

[@ehobbyguy8980]

Thanks for your question! Here is what i found on the error codes. It looks like your resistance is too high. Try putting the resistors in parallel to reduce the resistance. I hope this is helpful! Error codes and their meanings: Err1: Battery voltage is above 15V Err2: Battery voltage is lower than the termination voltage Err3: Battery can not afford to load discharge current or the circuit resistance is too high Err4: Overcurrent (current exceeds 3.1A)

[@didtoknan8128]

It's not a charger !!!

[@brannenthompson9662]

Hi I watched your video last week and my tester has just turned up in the post and I'll be using it for 18650 testing recycling from old laptop packs, Anyway, should I use both resistors or just one and sorry to ask but what is the benefits or negative reasons. Thanks great video's, by the way, love them as I'm just getting into E-Bikes.

[@brannenthompson9662]

I can't find the next video? which shows the different testing, I look on the channel am I being stupid?

[@ehobbyguy8980]

Thank you for your comment. There are different recommendations for the current that should be used to test these batteries. The manufacturer is supposed to specify the current. So if you have a spec sheet on the battery it will probably say it there. If it is a more generic battery and no info is available, then a rough rule of thumb is to use 0.2 times the rated capacity. So if you have a battery rated say 2500 mAh, then a good estimate for the current to be used to test it would be 0.2x2500 = 500mA. Since this tester does have a varying current as it discharges use the resistance that would give that current using the nominal voltage of 3.7V, i.e 7.5 ohms. R=V/I --> R = 3.7/7.5 = 493mA. This is just one example. I hope it was helpful. The testing of these batteries is actually quite complex. Thanks again for watching!!

[@brannenthompson9662]

Very helpful and not just a generic answer thanks so much.

[@brannenthompson9662]

Now just to go through all my bloody batteries. lol.

[@Patosanmos]

Mine shows 0.4v without having a battery and with the battery it shows less v than what the battery has. The resistors got very hot too.

[@HarleyFLHRCI99]

This product and test procedure only works on a good battery fully charged at the start.

[@melonskum5803]

Liked and subscribed.

[@IntoxicatedDriver]

Using your fingers for mechanical support of USB socket was still necessary with battery 1. However, you didn't show how you fixed the socket to the board before inserting the plug for testing battery 2, as mechanically arresting the socket didn't seem to have been necessary any longer.

[@Gemini-1]

Very good Sir.

[@ehobbyguy8980]

gemini1 thanks for watching

[@papanikojimavlog1651]

can i ask.if we can multiply or increase the number of resistor?

[@papanikojimavlog1651]

like 50w

[@brizee993]

Testing capacity of SLA or Lead Acid batteries recommends discharging at 1/20 C - one twentieth of battery capacity for 20 hours. Higher makes capacity appear less while less makes capacity appear greater. Since Lead Acid batteries cannot be discharged below 50% in general, this test could only be run for 10 hours and should finish with open circuit voltage of battery at 12.2 approx, or 50% SOC.

[@brizee993]

Additional comment: I'm not sure about Lithium Ion cells: maybe this rate doesn't apply

[@ianevans67]

So like a lot of 18650 that are fake does this conclude that your number 2 battery is actually rated at 700mAH rather than the 5amp HR that it states ? If so it's a good tool for weeding out the fakes

[@ehobbyguy8980]

Absolutely right!! Thanks for watching

[@burakkorkmaz9038]

Hi, which one consumes much more current, resistors in parallel or resistors in series?

[@ehobbyguy8980]

burak korkmaz Resistors in parallel reduce the overall resistance and allow more current. Resistors in series increase the overall resistance and therefore reduce the current. I hope this was helpful!

[@burakkorkmaz9038]

Thank you

[@arrevunella]

So? What is the right way to tester?

[@Steveuploads]

I used to do big cell tests in data centres. we were using a big heater on wheels with a big rheostat and were expected to adjust the amps we saw on our clamp meter by use of the rheostat as it fell due to the dropping cell volts. Some engineers didn’t bother, as this is the way of the world, so test data from one engineer to another were different. Is this something small battery testing should be employing ? I was told the reason was that the telecoms equipment that uses 48v in data centres was all ways going to pull the same amps but I never believe this theory as if the battery string has a finite capacity the volts and therefore amps were going to drop accordingly as time passed.

[@saleemkader2126]

compare this capacity tester with opus 3100 you will find a big difference , why. can you compare them and make a video.

[@ifell3]

Dude you never done the comparison or the other test that you stated in this video,,, gutted

[@88s10Durango]

Can this be used without the resister load ?? I just bought one and it did not come with any resistore ..

[@alwayscan21]

Bills BuildAll you need some sort of load to discharge the batteries. The resistors are an easy consistent way of providing this.

[@88s10Durango]

@@alwayscan21 thanks alot , kinda what i was thinking ..

[@DigitalIP]

Gonna get 1 on Amazon for $8, I make a lot of DIY power banks so having one will come in handy.

[@ehobbyguy8980]

DigitalIP thanks for the feedback

[@DigitalIP]

@@ehobbyguy8980 np :) Been a while since you last made a vid

[@Allroundfixer]

Indeed, what Mui MasMacho say's is correct no crappy stupid music.

[@Alex-us2vw]

Are those 18650 batteries trash, or is the tester off? 18650 usually have a much higher mah rating, even AA and AAA Eneloop NIMH cells get higher results

[@ehobbyguy8980]

Alex1911 you are absolutely right they are complete garbage. I bought them just to play around with. I knew the mA rating was fiction but figured I could make a video with them and maybe find a use for them somewhere. Thanks for the comment and thanks for watching!!

[@Wanttono]

Where is the comparison video of capacity testers ? !!!!

[@sefmags4506]

thankyou

[@wawantriwiharta8533]

Why i'm use always error ? And simbol + and - for what ?

[@IntoxicatedDriver]

No cell inserted, or drained cell inserted gives error. + and - are explained in the video. Try watching it.

[@jorgecostaphotography]

Can i test AA or AAA batteries with that?

[@ehobbyguy8980]

Yes you can. You just need to know the dropout voltage and set the tester. Let me know how it goes. Thanks for watching.

[@brannenthompson9662]

I glad I bought one I'm just testing a GTF 9900mah battery which I bought before I knew better, I'll post what I get later, Maybe I got the one miracle 9900mah battery that defies technology, who knows. well thank you I will soon.

[@brannenthompson9662]

600mah

[@kloklojul]

@@brannenthompson9662 LMAO

[@sefmags4506]

can i used different watt and ohm resistor

[@UControl4]

Absolutely, Thanks for watching.

[@sefmags4506]

Paul Maher i only have 20 watts 5ohm sandbar

[@sefmags4506]

can i use it?

[@devjitpaul1191]

And thanks

[@m.v.3754]

So is it better to test 18650's with 2 or 1 capacitors? Which is more accurate? Thank you!

[@ehobbyguy8980]

Martin Viti those are resistors, and it is my opinion that it is better to test with 2 resistors in series. This would result in a higher resistance and therefore a slower discharge. I think that would give a more accurate result. I hope this was helpful. Thanks for watching!!

[@m.v.3754]

@@ehobbyguy8980 thank you for your quick reply! Just to be sure i don't mess it us, could you possibly point me to some link with a video or photos on how to correctly connect the two in series? Thank you so much! This is my weekend project :D

[@vip-design]

Lol the Ultrafire battery says on side 5Ah when actually it is 0.5Ah? :D

[@mr.p3567]

i presume, they probably tested capacity with around a .1c discharge rate. maybe thats the idea with some flashlight led setups. but still, i see your point.

[@IntoxicatedDriver]

@@mr.p3567 Those are often sold in lots of 10 - and the stated capacity isn't for a single cell, but for the whole lot.

[@ecmelectronica]

This type of battery need set to 2.5v for check

[@bro-shamsulnubairi8689]

5000mah on the battery. but the result only 704mah

[@1ologarden]

battery model 18650 build in this world is with max current capacity 3500mAh any type , any place

[@fp274]

not very stable because resistor heats up, i use 6ohm 100W metal resistor on a heat sink, its much better