Test / Review: "Himax 2600" 18650 batteries from "pingyi.co.ltd" on eBay (very poor results)

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Shaneatproshop
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Yes and no, All i was trying to say is thats not how Samsung did there testing to come up with the numbers. My bigger concern it the Sony cell mixed in.

trooplewis
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Great, you have me worried about the last batch of 6 HiMax batteries I got from Pingyi
So I pulled one out of a torch and took it apart

No writing of any kind whatsoever on it.
I’m guessing I wasted a perfectly good $6.50 battery

Rats, finally sold my 2010 509hp Mustang...now I can buy more lights!

Sold the red one too! Now guess what I drive, doing my penance for 500 hp commuters...

http://dreammustang.com/

http://i884.photobucket.com/albums/ac47/Ha

nekdo12
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HKJ wrote:

Ecig wrote:
CBA? Whats that?

 

A battery analyzer, very useful if you want to test batteries, but also expensive.

A hobby charger can do the same, for less money, but might not have the same precision.


Or these one
pretzy
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@ Troop, not wasted. You can buy shrink wrap tubing from any electronics/electrical supplier. Get some the right size, cut off the right length and apply enough heat with a heat gun to re shrink wrap it. It will probably bet a bit thicker and better than the cheezy shrink wrap these cells come with from the factory.

The light shines in the darkness, and the darkness has not overcome it.

Ecig
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trooplewis wrote:
I’m guessing I wasted a perfectly good $6.50 battery

Why you think you wasted it when you can easily wrap it with some tape…

ILIKEFLASHLIGHTS
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So far so good on the ones I got yesterday. They all charged to around 4.13 volts.

Ecig
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ILIKEFLASHLIGHTS wrote:
So far so good on the ones I got yesterday. They all charged to around 4.13 volts.

YOu have hobby charger to test them?
AlexGT
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Nice to see you here Shane, welcome to BLF!

The HiMax batteries I bought from you on 7/2012 are still going strong and giving the rated capacity, some are even giving a little more than the rated capacity after several charge cycles.

http://budgetlightforum.com/node/11406

Hope you sort things out with the manufacturer.

Shaneatproshop wrote:
! I listen to my customers as these batteries where recommended by a few different enthusiasts. Now that we may have a flaw, it is important that all the customers that were sold batteries in the past had received what they paid for. It is a duty to do this service so I sleep better at night.

This thread has led me to purchase test equipment to run the batteries through. I want to do these tests per Samsung specifications in my own controlled environment.

ILIKEFLASHLIGHTS
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Ecig wrote:
ILIKEFLASHLIGHTS wrote:
So far so good on the ones I got yesterday. They all charged to around 4.13 volts.
YOu have hobby charger to test them?

No, but I do have a very good multimeter in the Innova 3320.

ILIKEFLASHLIGHTS
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This will explain it all.

I got this email from PingYi. Here’s what he told me and sent me to prove his case about this whole mess here.
________________________________________________________

We have the results of the survey,our batteries are all brand new and good,with samsung core.and the BBS post are our competitors,who want to destroy our company’s reputation, he is a Chinese, not American, intentionally destroy our brand, please don’t believe liar,here is a details,see email attachments.

thanks again,and your positive will be a great encouragement for us. If there’s anything I can help with, don’t hesitate to tell me.best wishes and have a nice day!

regards,
from pingyi.co.ltd

And here’s the picture he sent me that you can clearly see in post 30 here if you go back in look.

Now we know the rest of the story.

scaru
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Interesting, but what about the other users who reported problems? 

ILIKEFLASHLIGHTS
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All I know is that some here I don’t think even know how to truly use their hobby charger or equipment. Most of the majority of folks that have these batteries like them. Mine all checked out good after charging and were right at 4.12 volts. They are working fine for me. Samsung makes some good batteries. Yes there are better batteries to be had, but you will also pay more for them typically.

BetweenRides
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ILF, I'm not sure what that picture is supposed to prove? It could be Ronald Regan's photo for all I can tell. As to your cells all charging to 4.12v, what does that prove as well? I have cheap UltraFire cells that all charge consistently to 4.2v, but they are still crap batteries. A DMM is not going to tell you that it's a good cell. Only what the voltage is.

I will still buy Hi-Max cells from Shane, as I believe he is going to test his cells in the future and I think he's a good and honest dealer. I'm not sure about buying from other sources, however. Nothing I've seen here from multiple sources inspires my confidence

Ecig
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ILIKEFLASHLIGHTS wrote:
This will explain it all.

I got this email from PingYi. Here’s what he told me and sent me to prove his case about this whole mess here.
________________________________________________________

We have the results of the survey,our batteries are all brand new and good,with samsung core.and the BBS post are our competitors,who want to destroy our company’s reputation, he is a Chinese, not American, intentionally destroy our brand, please don’t believe liar,here is a details,see email attachments.

thanks again,and your positive will be a great encouragement for us. If there’s anything I can help with, don’t hesitate to tell me.best wishes and have a nice day!

regards,
from pingyi.co.ltd

And here’s the picture he sent me that you can clearly see in post 30 here if you go back in look.

Now we know the rest of the story.

Now I really dont understand what to make of it. Ididnt test all of my cells yet (only 4 of 12), but all have voltage drop to 3,5V in one minute or so..
SO thats nothing like results from HKJ’s original review of these cells. WOuld pingyi care to explain that? Im more than opet to all explanations.

HKJ recently did new review and now his results are little worse (but not as bad as my results – thats also mistery to me… and I doubt in all, me, HKJ, pingyi, my equipment, etc Big Smile )

Here’s review from another member, of old himax (I mean older review), and curve is nothing like my (3,8V after 30 mins – thats why I bought these batts…)

!http://lygte-info.dk/pic/Batteries2012/Hi-Max%2018650%202600mAh%20(White)/Hi-Max%2018650%202600mAh%20(White)-CapacityTime.png!

This is from new review of HLJ, and they are still far above my measurements… 3,85V after 30 mins.
Zhats still science fiction for me because, as I said, I continually get 3,5V after only 1 minute or so (or even before).

SO, I dont know want to think abiut the but I wont by them until I make sens of it.

On same equipment I also test trustfire flames and some other cells and they have same or better voltage sag… I mean, if we presume the fault is in equipment, why get very smililar resultrs with TF flames (and these cells supposedly have much treater coltage sag…)

Ecig
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And results by his guy, for wich pingyi claims is a scammer, are similar to my results http://budgetlightforum.com/node/12756

These middle curves.
Or there is possibility that there is nothing wrong with our equipment, but pingyi sends one kind of himax for regular customers, and other kind (not so good quality) to new customer for whom he hopes wont test them.

That would be an answer for so much differen results, and it wouldnt be some big surprise to me…

Even big companies, vry known do that – send better qualite product in western Europe, for example, and bad quality (but same product, same trademark) to Eastern Euope.

COrrection: they are consistently (just testing 5th cel) between 3,5V and 3,6V after 60 secs of discharging with 1A.

SO thats cant be some mistake, They are all same cells. (Same overpaid cells Shocked )

Second correction – curves of this guy from the link above are 2,5A, but they seem the same as my results 1A Smile

CB
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So, is there any consensus on these cells? Is it better to buy from one seller or another and which one, or should we just buy something else?

gords1001
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Cb, look out for torchy the battery boy (big_f_d_d) on eBay, he’s now doing his own branded cells as well as recognizable brands. They seem to be very very good and they come from Glasgow so get to us in Lancashire pretty quick. He’s also a member here, who has posted some reviews, but has not yet posted up about his own cells. I have four, plus some 27650 cells that look identical to king Kong’s that are at a good price with a tr-006 charger.

Ecig
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Yeah I would be interested in those if not the double price…

CB
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gords1001 wrote:
Cb, look out for torchy the battery boy (big_f_d_d) on eBay, he’s now doing his own branded cells as well as recognizable brands. They seem to be very very good and they come from Glasgow so get to us in Lancashire pretty quick. He’s also a member here, who has posted some reviews, but has not yet posted up about his own cells. I have four, plus some 27650 cells that look identical to king Kong’s that are at a good price with a tr-006 charger.

Cheers, I’ll have a look.

gords1001
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What’s the saying? Ah yes, “you get what you pay for” Wink

Their not so bad for us in England, but the exchange rate would be a killer for most I think. £10 is about US$15 roughly, so they do look expensive, but for us in the UK, we get good cells from a trusted seller with a quick delivery time. Hence why I suggested to cb, but not to everyone. Wink :bigsmile:

edc
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I don't believe the OP is a competitor. Even if he is asian or not. That response makes me distrust Pingyi now.

 

http://i1193.photobucket.com/albums

Shaneatproshop
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Pingyi brought the picture/competitor scam up to me the other day but i didn’t want to say anything. Thats to hard to prove and plus wshyang has a list of other post yet, he seems very focused on 18650 batteries. At this point i don’t know what to believe. All i can say, until my test equipment arrives, is that i specify Samsung core batteries and i don’t doubt that is what i received.

-Shane

ILIKEFLASHLIGHTS
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Well I just was sharing info here so like Shane I don’t know all the facts. But I do believe the batteries I got are good ones. I’ll know more for sure as we all will in time. Again just passing on info to try and help.

Ecig
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Shaneatproshop wrote:
Pingyi brought the picture/competitor scam up to me the other day but i didn’t want to say anything. Thats to hard to prove and plus wshyang has a list of other post yet, he seems very focused on 18650 batteries. At this point i don’t know what to believe. All i can say, until my test equipment arrives, is that i specify Samsung core batteries and i don’t doubt that is what i received.

-Shane

And can you pls comment my (consistent) results regarding voltage drop – I would like to have comment from someone more knowledgable aboiut this than me. Cause Im confused with these results and I dont like to be confused :):D

wshyang
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Woah, just been away for a couple days due to work and this.

For one, I am actually very insulted that Pingyi has the galls to suggest I am a scammer solely on the fact that I am Chinese, if I am Asian and they call me a scammer, what the hell do they think they are?

If anything, they have indicted themselves because they could very well have defended their product through other means apart from making personal attacks.

wshyang
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Shaneatproshop wrote:
Pingyi brought the picture/competitor scam up to me the other day but i didn’t want to say anything. Thats to hard to prove and plus wshyang has a list of other post yet, he seems very focused on 18650 batteries. At this point i don’t know what to believe. All i can say, until my test equipment arrives, is that i specify Samsung core batteries and i don’t doubt that is what i received.

-Shane

Yes, I am actually keen on making my own mobile battery packs to save money. Is that a sin?

wshyang
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ILIKEFLASHLIGHTS wrote:
All I know is that some here I don’t think even know how to truly use their hobby charger or equipment. Most of the majority of folks that have these batteries like them. Mine all checked out good after charging and were right at 4.12 volts. They are working fine for me. Samsung makes some good batteries. Yes there are better batteries to be had, but you will also pay more for them typically.

You keep harping on this whole “Samsung” point, how do you explain the fact that there are Sony & Sanyo cells found?

Nevermind their BS excuses?

You sound delusional throughout the whole thread, you realise that? It is like you are wanting to believe what you want to believe.

Gosh, just thinking about how Pingyi actually has the gall to suggest that just being asian means I must be some sort of a crook makes my blood boil. I am going to escalate the Paypal dispute RIGHT NOW.

Ecig
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What I also noticed about one cell (I can only share my observations, I dont have time for extensive testing).

I had one Keygose KE5 directly driven. One himax cell PCB was tripping (I havent checked the others), while trustfire flame PCB wasnt ftripping. SO go figure…

(To be sure: Im pretty positive that shortcircuit protectin on both cells is working. SO, iw wasnt short circuit, but overcurrent protection… So, if my observations are correct, and dont see why they wouldnt be, there is something wrong both with the cell itself and protection circuit mounted on it)

tatasal
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Have you tried discharging those same cells at .5A and compare the results?

I understand your point though, suppliers, from wholesale to retail, must at all times be dependable.

wshyang
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tatasal wrote:
Have you tried discharging those same cells at .5A and compare the results?

I understand your point though, suppliers, from wholesale to retail, must at all times be dependable.

Discharging at .5A is really quite a pointless exercise, in actuality even our cheap $8 Solarforce P60 single mode dropins pull down 0.7A, what good do we have for a battery that is only able to deliver the goods at 0.5A?

What pisses me off with Pingyi can really be summed up as follows:
1) they misrepresent their product
2) their product isn’t cheap to start with… for a few dollars more I can get a dozen Panasonics…
3) upon receiving word of the dispute, they make you all sorts of promises that they seem to have no intention of following through on
4) when shown proof of their deception, their only defence is… I’m Asian? And I am a competitor? I don’t even live in China for goodness’ sake, and I’d wager every cent I’ve got that I am more conversant in English than anyone they or their competitors can afford to hire… just sayin’.
5) I honestly doubt they did any comprehensive audits of their production facility as well. If anything, I get this strong sense that any words they say are merely lies meant to put us at ease.

I will give them one last chance to show us whether they are crooks or are truly honest folks that we ought to trust. No more empty words from them, only actions count. If I don’t get my money back as they promised I’ll simply fill up a form, pack their junk along with it, and send it off to the bank.

Such dishonest Chinese companies ought to be punished. If anything, it is jerks like these that gives all Asians a bad name.

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