Opus BT-C3100 vs LiitoKala Lii-500

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tatasal
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will34 wrote:

The opus is actually much friendlier to use for basic tasks, doesn’t require too many button presses to get it working.

Yes.

gyzmo2002
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tatasal wrote:
gyzmo2002 wrote:
@Tatassal

I have think to that again. All my tests were done on a charge test. (C>D>C) and yours on a discharge only. I think there is a possibility of another “flaw” with the Opus.

I never did a test only with a discharge only to 2.80v to test it. What I think with your results is they could be different between these two test.

I don’t do the ‘test’ mode since it takes a very long time to finish it without a break, and, call it a flaw or whatever, but the Opus, and I remember it now as I have not used the ‘test’ mode’ because of it, I get confused with the figures shown. IIRC, the numbers shown after the Discharge portion are actually the Charge numbers (that is why you are seeing a higher reading), and I think you have to wait for the last numbers to show to know the discharge numbers, and that is after the second Charge portion.

I have pointed this out the to this charger’s designer. I have made an example of the simplicity of my Maha C9000 that clearly shows ‘available capacity’ after a Test session.

This is the reason why I use the ‘Discharge’ mode only to get the capacity for I will be certain the numbers shown are surely the discharge capacity, and I can take a break between modes, or give the cell a longer break, etc.

If you have time, take the Discharge test and compare it to your MC3000, and I’m sure you will see a much closer result.

I just try it with the same discharge >D you did on my 18650b. My result is 3520mah at 2.80v. The charge test C>D>C I did before with this cell was 3502mah.(posted on cpf). On the charge test C>D>C at the end, you always have the discharge capacity because when it charges, the number doesn’t change. On the MC3000 v1.02, at the end of the C>D>C, you have the discharge at the end but you can see the capacity during the charge. At the last second, the display switch to the discharge capacity. To have the charge capacity, you must use the application for ios that shows only the charge capacity. This flaw in corrected in FW1.04. We will have the charge abd disccharge capacity at the end. We all waiting to update our mc3000.

I have near the same result in the Opus, on a C>D>C or a discharge >D only. 3520vs3502.
These results are too high as I said before.

I will try to post the photo of my >D test I just did.

We are at the same point as 12 hours ago.

The discharge >D I just did
http://s19.postimg.org/jy65m6283/image.jpg

The discharge test C>D>C I did 2 months ago
http://s19.postimg.org/63rdz3poj/image.jpg

gyzmo2002
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tatasal wrote:
gyzmo2002 wrote:
@Tatassal

I have think to that again. All my tests were done on a charge test. (C>D>C) and yours on a discharge only. I think there is a possibility of another “flaw” with the Opus.

I never did a test only with a discharge only to 2.80v to test it. What I think with your results is they could be different between these two test.

I don’t do the ‘test’ mode since it takes a very long time to finish it without a break, and, call it a flaw or whatever, but the Opus, and I remember it now as I have not used the ‘test’ mode’ because of it, I get confused with the figures shown. IIRC, the numbers shown after the Discharge portion are actually the Charge numbers (that is why you are seeing a higher reading), and I think you have to wait for the last numbers to show to know the discharge numbers, and that is after the second Charge portion.

I have pointed this out the to this charger’s designer. I have made an example of the simplicity of my Maha C9000 that clearly shows ‘available capacity’ after a Test session.

This is the reason why I use the ‘Discharge’ mode only to get the capacity for I will be certain the numbers shown are surely the discharge capacity, and I can take a break between modes, or give the cell a longer break, etc.

If you have time, take the Discharge test and compare it to your MC3000, and I’m sure you will see a much closer result.

IIRC, the numbers shown after the Discharge portion are actually the Charge numbers (that is why you are seeing a higher reading), and I think you have to wait for the last numbers to show to know the discharge numbers, and that is after the second Charge portion.

No your wrong. After the discharge, you are at 2.80. The capacity displayed is the discharge capacity.

Now, I will charge this cell with the charge and will see what we have at the end. I will take 3:20.

Edit: I try to have an accurate result but I can’t with the Opus.

On the MC3000, discharge, charge, CDC…all the results are the same and lower than the Opus ( discharge or a CDC) and on the specs of the cell.

tatasal
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gyzmo2002 wrote:
tatasal wrote:
gyzmo2002 wrote:
@Tatassal

I have think to that again. All my tests were done on a charge test. (C>D>C) and yours on a discharge only. I think there is a possibility of another “flaw” with the Opus.

I never did a test only with a discharge only to 2.80v to test it. What I think with your results is they could be different between these two test.

I don’t do the ‘test’ mode since it takes a very long time to finish it without a break, and, call it a flaw or whatever, but the Opus, and I remember it now as I have not used the ‘test’ mode’ because of it, I get confused with the figures shown. IIRC, the numbers shown after the Discharge portion are actually the Charge numbers (that is why you are seeing a higher reading), and I think you have to wait for the last numbers to show to know the discharge numbers, and that is after the second Charge portion.

I have pointed this out the to this charger’s designer. I have made an example of the simplicity of my Maha C9000 that clearly shows ‘available capacity’ after a Test session.

This is the reason why I use the ‘Discharge’ mode only to get the capacity for I will be certain the numbers shown are surely the discharge capacity, and I can take a break between modes, or give the cell a longer break, etc.

If you have time, take the Discharge test and compare it to your MC3000, and I’m sure you will see a much closer result.

I just try it with the same discharge >D you did on my 18650b. My result is 3520mah at 2.80v. The charge test C>D>C I did before with this cell was 3502mah.(posted on cpf). On the charge test C>D>C at the end, you always have the discharge capacity because when it charges, the number doesn’t change. On the MC3000 v1.02, at the end of the C>D>C, you have the discharge at the end but you can see the capacity during the charge. At the last second, the display switch to the discharge capacity. To have the charge capacity, you must use the application for ios that shows only the charge capacity. This flaw in corrected in FW1.04. We will have the charge abd disccharge capacity at the end. We all waiting to update our mc3000.

I have near the same result in the Opus, on a C>D>C or a discharge >D only. 3520vs3502.
These results are too high as I said before.

I will try to post the photo of my >D test I just did.

We are at the same point as 12 hours ago.

The discharge >D I just did
http://s19.postimg.org/jy65m6283/image.jpg

The discharge test C>D>C I did 2 months ago
http://s19.postimg.org/63rdz3poj/image.jpg

Does it read high in all your cells, or only in that NCR-B so far?

Perhaps your specific Opus does read high indeed, as I have owned and used 5 (2 x v2.0, 2 x v2.1 and the v2.2) of them and never had a problem like yours.

I hope other members could chime in their experiences. The Opus has been already around with us for at least 2 years already and so far no complaints here in BLF on abnormally high discharge capacity reading.

gyzmo2002
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tatasal wrote:
gyzmo2002 wrote:
tatasal wrote:
gyzmo2002 wrote:
@Tatassal

I have think to that again. All my tests were done on a charge test. (C>D>C) and yours on a discharge only. I think there is a possibility of another “flaw” with the Opus.

I never did a test only with a discharge only to 2.80v to test it. What I think with your results is they could be different between these two test.

I don’t do the ‘test’ mode since it takes a very long time to finish it without a break, and, call it a flaw or whatever, but the Opus, and I remember it now as I have not used the ‘test’ mode’ because of it, I get confused with the figures shown. IIRC, the numbers shown after the Discharge portion are actually the Charge numbers (that is why you are seeing a higher reading), and I think you have to wait for the last numbers to show to know the discharge numbers, and that is after the second Charge portion.

I have pointed this out the to this charger’s designer. I have made an example of the simplicity of my Maha C9000 that clearly shows ‘available capacity’ after a Test session.

This is the reason why I use the ‘Discharge’ mode only to get the capacity for I will be certain the numbers shown are surely the discharge capacity, and I can take a break between modes, or give the cell a longer break, etc.

If you have time, take the Discharge test and compare it to your MC3000, and I’m sure you will see a much closer result.

I just try it with the same discharge >D you did on my 18650b. My result is 3520mah at 2.80v. The charge test C>D>C I did before with this cell was 3502mah.(posted on cpf). On the charge test C>D>C at the end, you always have the discharge capacity because when it charges, the number doesn’t change. On the MC3000 v1.02, at the end of the C>D>C, you have the discharge at the end but you can see the capacity during the charge. At the last second, the display switch to the discharge capacity. To have the charge capacity, you must use the application for ios that shows only the charge capacity. This flaw in corrected in FW1.04. We will have the charge abd disccharge capacity at the end. We all waiting to update our mc3000.

I have near the same result in the Opus, on a C>D>C or a discharge >D only. 3520vs3502.
These results are too high as I said before.

I will try to post the photo of my >D test I just did.

We are at the same point as 12 hours ago.

The discharge >D I just did
http://s19.postimg.org/jy65m6283/image.jpg

The discharge test C>D>C I did 2 months ago
http://s19.postimg.org/63rdz3poj/image.jpg

Does it read high in all your cells, or only in that NCR-B so far?

Perhaps your specific Opus does read high indeed, as I have owned and used 5 (2 x v2.0, 2 x v2.1 and the v2.2) of them and never had a problem like yours.

I hope other members could chime in their experiences. The Opus has been already around with us for at least 2 years already and so far no complaints here in BLF on abnormally high discharge capacity reading.

All the cells tested, 18650GA, B, LG MJ1, HG2, Eneloop Pro, Eneloop regular….are too high with the Opus.

The B above is on charge now. I am sur that the result will be too high again.

As I said above, I saw many results with the Opus when people post their result with pictures in the feedback on AliExpress. All that tests started when Sledgestone asked why the results of his Opus always read too high.

flydiver
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These kind of questions and comparisons are almost as useless as “What’s the best charger for the money?” that we see all the time.
I have a bunch of chargers, and after reading through all of this I’m as confused as before and I’ve been doing this for a long time.
What the hell is a newbie trying to decide supposed to do?

Newbie answer – Both are ‘OK’. Both have problems. CHOOSE ONE AND LIVE WITH IT.
There is no correct answer.

To Air is Human, to Respire….Divine.

tatasal
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flydiver wrote:
These kind of questions and comparisons are almost as useless as “What’s the best charger for the money?” that we see all the time.
I have a bunch of chargers, and after reading through all of this I’m as confused as before and I’ve been doing this for a long time.
What the hell is a newbie trying to decide supposed to do?

Newbie answer – Both are ‘OK’. Both have problems. CHOOSE ONE AND LIVE WITH IT.
There is no correct answer.

Yes, and this the irony from it…once a cell is in my flashlight, I can’t even tell the difference in performance between the cell charged from a $4 charger compared to one charged by a charger that cost me more than a $100!

gyzmo2002
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will34 wrote:
At 1A rate, my opus showed 3,450mAh after discharging a set of Sanyo GA down to 2.7V, and the same set of batteries in the MC3000 with discharge current reduction (similar to CC/CV but for discharge) of 50mA and down to 2.5V I only got 3,350mAh. But the numbers from the MC3000 were actually closer to various results from members with sophisticated testing equipment.

Maybe this doesn’t happen with every unit, But at less than 5% variation I don’t think it is an issue at all, if one isn’t looking for the ultimate accuracy.

The opus is actually much friendlier to use for basic tasks, doesn’t require too many button presses to get it working.

The spec for the Ga are at 25Celsius 3350min-3450max. at a currant of 670ma, no specified terminaison but terminaison cut off specified but for the B it is 65ma. You are target with your MC3000.

The results of your Opus is higher according to these specs but lower than mine with brand new Evva 3500 (GA), 3550mah, tested 2 months ago.

gyzmo2002
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tatasal wrote:
flydiver wrote:
These kind of questions and comparisons are almost as useless as “What’s the best charger for the money?” that we see all the time.
I have a bunch of chargers, and after reading through all of this I’m as confused as before and I’ve been doing this for a long time.
What the hell is a newbie trying to decide supposed to do?

Newbie answer – Both are ‘OK’. Both have problems. CHOOSE ONE AND LIVE WITH IT.
There is no correct answer.

Yes, and this the irony from it…once a cell is in my flashlight, I can’t even tell the difference in performance between the cell charged from a $4 charger compared to one charged by a charger that cost me more than a $100!

A charge is a charge. Playing with flashlights and cells is a hobby. The MC3000 is a good charger if you want to learn. All the parameters are configurable. It is easy to understand and the Advanced mode is the funniest.

If they could find a way to update ours now….

Edit: Start to play with yours, you will learn a lot in only some days.

gyzmo2002
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The terms used in the Opus are not clear enough. It is more easy to use term CDC, C>D>C, >C….it is universal. The Opus and the Maha doesn’t use the same terms too. When we talk together and use the charger terms, it is not take long to be mixed.

gyzmo2002
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Some results took from Aliexpress. I took the first I’ve seen.
These results should be between 3250-3350mah

https://www.dropbox.com/sh/5kd8b6tlex58kzv/AACQj8c3v0dav_GTBkKSVRVla?dl=0

A lot of variations.

gyzmo2002
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@tatasal

Charge 3423mah

http://s19.postimg.org/6jxo3vkxv/image.jpg

We will talk about our results tomorrow if you want.

gyzmo2002
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@tatasal

you have not managed to prove me wrong. For your photos either. I can show you any results in a load or discharge as the charger displays the real-time capacity.

An exemple: http://s19.postimg.org/ixg2etadf/image.jpg

I asked you for a “test load” and you did not want to do it. The test load shows the total capacity only at the end of the discharge and continues to display it until the end of the load. If you have managed to prove that your charger is accurate, you would have been the first. It is possible that there are, I have not seen to date.

I brought several pictures took on AliExpress in the feedbaks sections, you could check if you want to. The results are higher than the capacity of the battery.

Conclusion: the Opus BT3100 gives a higher capacity than the cell rating. Nobody has yet managed to prove me wrong. Some devices seems closer to the max limit than others, but are still higher than the maximum limit that is between 3250-3350mah for a 18650b cell at 25celsius. It’s the same thing with the GA, LG HG1, MJ1, Eneloop and more…

The Opus is a very good charger. If I would not have my MC3000, it would still be my first choice. I have not the LiitoKala so I cannot give comments about it.

*Sorry for my english. French is my native language.

tatasal
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@gyzmo2002

I said the cells in my previous five photos that they were all fully-charged before they were discharged using the ‘Discharge’ mode (not the Test mode) of my Opus v2.1 and v2.2

The photos were taken after the ’0’ma showed in the Display, meaning the discharging has stopped, and also the mah capacity terminal photos.

Those are the results from my Opus chargers.

You said YOUR Opus (and some other guys in Aliexpress(?) are reporting they are getting higher readings than expected, so be it. I’m not arguing with any of you, I am just showing mine.

Unfortunately for have doubted my integrity by suspecting that I have not fully-charged the cells before the discharge sessions to make sure I will get a low reading, and that’s very funny, to say the least!

So enjoy what you have, and I will enjoy what I have… Beer

gyzmo2002
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tatasal wrote:
@gyzmo2002

I said the cells in my previous five photos that they were all fully-charged before they were discharged using the ‘Discharge’ mode (not the Test mode) of my Opus v2.1 and v2.2

The photos were taken after the ’0’ma showed in the Display, meaning the discharging has stopped, and also the mah capacity terminal photos.

Those are the results from my Opus chargers.

You said YOUR Opus (and some other guys in Aliexpress(?) are reporting they are getting higher readings than expected, so be it. I’m not arguing with any of you, I am just showing mine.

Unfortunately for have doubted my integrity by suspecting that I have not fully-charged the cells before the discharge sessions to make sure I will get a low reading, and that’s very funny, to say the least!

So enjoy what you have, and I will enjoy what I have… Beer

Why not do a charge test? That will be the only way to prove your point for your charger.

With all the evidences, telling that the Opus measurements are in the specifications of the cells is wrong and if you continue to repeat it again, you will lose all your integrity. Even if you have a super Opus different from others…beer.

akhyar
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Can you guys go to PM instead of confusing newbies and start questioning other members “intergrity”.
I’m sure both are excellent chargers and no doubt there are always “lemon” out there

gyzmo2002
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When someone says something and the other says the opposite, we must bring the facts to prove his assertion and that’s what I did.

Sorry but I didn’t know that this forum is for newbies. Even if this is the case, it does not give the right to say anything.
MaxBeam
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gyzmo2002 wrote:
When someone says something and the other says the opposite, we must bring the facts to prove his assertion and that’s what I did. Sorry but I didn’t know that this forum is for newbies. Even if this is the case, it does not give the right to say anything.

Actually, when one person states his results, and then another person states that he got different results, they usually just leave it at that. After all, it’s just one persons experience with one or two samples of a particular charger and another persons experience with one or two samples of a different charger. Usually people who “demand proof” get laughed out of here. Nobody has to prove anything to anybody to keep on using an item that works for them.

Personally, I use the Opus BT3100 and am extremely happy with it. It’s easy to use and has done everything I’ve asked of it. I have no reason to buy another charger to see if it’s a few percent more accurate because I don’t really care if it’s a few % off.

The endless demands for proof accomplish nothing. You have stated your findings and I’m actually glad you did because that might be useful information to someone. Well written reviews are always appreciated. But to “demand proof” or to try and convince everyone that yours is better or that theirs is not good enough is carrying things a little too far. People are going to continue using what works for them and they will be happy while doing it.

If you want to be really useful, buy a dozen samples of each charger and test all of them under the exact same conditions with the exact same batteries so that you get an average of each charger, then write up a review comparing them for all of us to see. I’m sure all of us would appreciate that kind of detailed comparison.

tatasal
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gyzmo2002 wrote:
@tatasal

you have not managed to prove me wrong. For your photos either.

I asked you for a “test load” and you did not want to do it. The test load shows the total capacity only at the end of the discharge and continues to display it until the end of the load. If you have managed to prove that your charger is accurate, you would have been the first. It is possible that there are, I have not seen to date.

Well, here is what you are demanding:

Below is the Charge Test that you wanted me to do of which a photo of the Sanyo UR14500P that shows the result. Note the word TEST on the slot used.

The NCR-B cell of the left bay is still undergoing discharge in the Charge Test.

Charger used is the v2.2. The photo speaks for itself:

! photo 4b4683cd-f404-4544-a18b-8b7dd417921b_zpsnkcuhkdu.jpg!

Below is the same photo I posted in post #25 but used the straight Discharge mode only and of which you doubted the ‘fullness’ of the beginning charge of the cell. Charge used is a v2.1

! photo IMG_0528_zpsgidz33rk.jpg!

tatasal
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@gyzmo2002 :

The photo below now show the conclusion the NCR-B after the “Charge Test” you are demanding to make sure the cells have undergone the C-D-C for a doubtless full-charge.

Again, the photo below will show that MY Opus chargers (v2.1 and v2.2) DOES NOT read high and is believe common to a large majority of Opus BT-C3100 owners.

! photo 5f454638-a1fc-490c-9f9d-39154542f171_zpswb8rxvv6.jpg!

gyzmo2002
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@tatasal

I have to do another answer because when I send the one I just did(take me 1 hour with my english) I lost all when sending with my iphone.

I will use my computer and do another one and will edit this one.

flydiver
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Question for the original poster, IamMatt. A single request posted, no other action at all.

Did you get anything useful out of this thread? People like you start threads of this sort all the time and they seem to rapidly deteriorate into discussions that are so arcane as to be of no value to anyone but the arguers.

To Air is Human, to Respire….Divine.

gyzmo2002
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According to your test I asked you to do first but finally decide to do it at last, your result is lower than the cell rating that indicate to me that it is probably not a new cell but I cannot prove it. I will let you the benifit of doubt. If I take for granted that your chager is accurate, it is the first result that I see that is right. If you had done it when I asked you, we will not be at this point about talking of your integrity.

I have done many tests 1-2 months ago with the Opus because a member (Sledgestone on CPF) asked a question about why his Opus gives higher capacity mearurements than the specs of the cell. My charger did the same but I never bothered with that. Four-five days before he asked this question, I have received the MC3000. I decided to do some test to find why we have these high results and give me the chance to test the 3000. All my test I did before (opus) were higher (I keep all the pictures of my measures). I tried the MC3000 in Advanced mode to do many test and I set it according the setting of the Opus. All my results where near the lower range spécifications of the cell with the 3000. I did it with brand new (1 cycle because these cells were tested when I received them with the opus (around 3500-3600mah for a B cell)) and around 3150 with MC3000). I have to find why. I set the 3000 according the measured setting datasheet for these cell as said before. At that point, the results of the 3000 were target. I reapeated the same thing with GA, LG Mj1, HG1, Eneloop Pro, Eneloop ordinary with always the same results.

I decided to try to find results to see if I was my Opus or a general tendancy. I went to AliExpress, the place where I buy my cells, to check the feedback section of the sellers. All the results I have seen from 3 sellers showed me that their results are all higher than the specs of the cell (posted above). Some a bit higher than the high end (3250-3350mah at 25 Celsius rating specs of the cell) and some, like mine, more higher. I did not found any that show me the opposite. I concluded that the Opus measures higher capacity than the cell rating.

Your last test above shows me the opposite and this is the first that I see with this result. Like I said, I must take for granted that you used a new cell. With an old cell, that cannot prove anything. I will leave you the benifit of doubt. At that point, I cannot say that the Opus is accurate in the capacity measurements as I said before. All I can say, it is a trend to measure higher if I take for granted that your charger is accurate. I cannot prove it is not because I did not test your charger.

If you could find results from other people at the place you want and a place that I can go to see them (amazon-Ali…etc, I will have to admit that my statement was wrong. But for now, with all the test I saw and I did, I could not say that.

The Opus is a very good charger as I said before. This is my second charger since I have the 3000. One of its flaw, it is its capacity to measure the capacity of the cells. Another inaccurancy, for the Opus, I saw on mine and according to what I read, is the reading of voltage. Straight at the end of the charge, you see 4.20v on the display but If you take a DMM, you have good chance to see 4.22v but it remains in the spec. accurancy of the charger.

We asked members to try the charge test by themselves but only one did it. His result was higher than the cell rating but target with his mc3000.

I would like to have seen more results though with the LiitoKala also to see the difference.

gyzmo2002
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flydiver wrote:
Question for the original poster, IamMatt. A single request posted, no other action at all.

Did you get anything useful out of this thread? People like you start threads of this sort all the time and they seem to rapidly deteriorate into discussions that are so arcane as to be of no value to anyone but the arguers.

Show me one thread that I have started here… and on CPF to prove your point.

Your comment is not usefull in this discussion. If you don’t want to read and understant it, you have the choice to past to another. When someone affirm something and you affirm the opposite, we have to prove our point. That is the purpose of a forum to share knowledge and it is in the forums that I learn a lot. I have seen so many people who say anything agains by just to say something.

If the moderator judge the proof of my statement not usefull in this thread, fell free to delete them. One person says black, the other says white. Keep the two versions only if you want. But without argumentation, I don’t think it will be usefull.

BTW, if you have evidence that what I said is wrong, I invite you to show me. In PM if you want.

gyzmo2002
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can wrote:
I think it takes 2 to argue. I only see one. The posts speak for themselves.

One possibility: when you know you’re wrong, you do not try to argue otherwise you risk to get caught.

IamMatt
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flydiver wrote:
Question for the original poster, IamMatt. A single request posted, no other action at all.

Did you get anything useful out of this thread? People like you start threads of this sort all the time and they seem to rapidly deteriorate into discussions that are so arcane as to be of no value to anyone but the arguers.

To answer your question, yes, I think I did. Several posters tried to address my specific concerns (thanks, y’all), and I am digesting and researching their responses/opinions and I think I am closer to a decision. Thing is, I like to collect flashlights but I don’t want to collect chargers (lol) so I would rather just buy one (more) that will do what I want.

I am not sure about threads stated by People Like Me (!) deteriorating into arcane discussions; I haven’t seen many threads here that got derailed as much as this one.

Why do I carry a flashlight?  Because half of every day is dark.

gyzmo2002
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IamMatt wrote:
flydiver wrote:
Question for the original poster, IamMatt. A single request posted, no other action at all.

Did you get anything useful out of this thread? People like you start threads of this sort all the time and they seem to rapidly deteriorate into discussions that are so arcane as to be of no value to anyone but the arguers.

To answer your question, yes, I think I did. Several posters tried to address my specific concerns (thanks, y’all), and I am digesting and researching their responses/opinions and I think I am closer to a decision. Thing is, I like to collect flashlights but I don’t want to collect chargers (lol) so I would rather just buy one (more) that will do what I want.

I am not sure about threads stated by People Like Me (!) deteriorating into arcane discussions; I haven’t seen many threads here that got derailed as much as this one.

If my argument not informed you in your choices, and since you’re the instigator of this thread, you could ask the moderator to delete it. It is technical but I had to demonstrate what I said because we had two differents opinions.

Lazy-R-us
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IamMatt wrote:
flydiver wrote:
Question for the original poster, IamMatt. A single request posted, no other action at all.

Did you get anything useful out of this thread? People like you start threads of this sort all the time and they seem to rapidly deteriorate into discussions that are so arcane as to be of no value to anyone but the arguers.

To answer your question, yes, I think I did. Several posters tried to address my specific concerns (thanks, y’all), and I am digesting and researching their responses/opinions and I think I am closer to a decision. Thing is, I like to collect flashlights but I don’t want to collect chargers (lol) so I would rather just buy one (more) that will do what I want.

I am not sure about threads stated by People Like Me (!) deteriorating into arcane discussions; I haven’t seen many threads here that got derailed as much as this one.

I am trying to decide between these very two analyzing chargers. While I would love to pony up for the new holy grail charger – the MC3000, I simply can not justify the $100 expense. I have salvaged many 18650 batteries from laptops and I would like to be able to see what the capacities are for the ones that pass the initial “> 3.0v resting salvage voltage” pass / fail test. This thread has reinforced my thoughts that I will go with the Lii-500.

  • HKJ prefers non pulse charging
  • Lii-500 has battery bank capability

A plus for me for both of these chargers is that they take a 12VDC input voltage, which means that I can easily power them from a car battery for charging on the go or in the event of a power outage.

As for the rest, I will simply thank tatasal for patiently posting the results of your testing.

Lazy-R-us

tatasal
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@IamMatt: I apologize for derailing this thread.

@gyzmo2002: new Charge Test photos (if these photos still cannot convince you, nothing else will)

Opus BT-C3100 v2.2
Samsung INR18650-30Q brand-new 3000mAh
1A charge/discharge rate
mode used: Charge Test

! photo IMG_0542_zpsaqwhn407.jpg!
What’s clearly shown below is that my Opus does not exceed the cell’s rating of 2900mah.
! photo IMG_0545_zpsizvhsbpg.jpg!

Ronin42
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Isn’t the Opus BT-C3100 the unit/model that has the pain in the A$$ fan noise failure issue? if so I would that this deserves to the added to the pro and con list?

And also how to they compare on price? It might be possible to buy two of one type over only one of the other? that might help address charge/capacity runtime issues?

(“It’s good that most people can’t remember their previous lives. Otherwise
things would be a lot more complicated than they already are.”
Ajaan Lee Dhammadharo)

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