That is a nice light there!!! :bigsmile: 
OP’s CBA? Whats that?
I dont know about my equipment, but even if readings are not nominally correct, they surely have some comparative value, and by these tests these cells are not better than my Trustfire flames, just some 200mAh higher capacity. (because Trustfire flames i regurarly measure just below 2000, and these I regurarly measure, with some exceptions, just below 2200, when discharging with 1A to 2,8V)
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.
Actually, 2.5A is only 1C. That is very low you know, it is not a very high discharge rate as you are purporting.
Yes, at some point I will do this, especially for the weird 1000mah cells.
Just that they are unwrapped and naked now, I am also planning to rig up a more robust holder someday to provent a naked battery from going poof during testing.
For anyone that may not know, I am a vendor for these batteries.
Before I start to dig to deep, I want to get a few things clear. Honestly, I don’t care about these batteries. I’m NOT defending them. I will simply stop carrying them if the quality is poor. I stock many brands of batteries and flashlights. I will not hesitate to pull these off the shelf as I have done with other items; if they are junk.
I am not on this forum to bicker. I really don’t want to point fingers nor do I want to tell somebody they are doing something wrong. I’m on this thread to get to the bottom of a flaw from a manufacturing vendor that I trusted. To this point I still do; with some uneasy doubt. We can only hope for the best.
The ultimate reason I need to get to the bottom of this is the customers!
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.
Many people on and off these forums have dealt with me as a supplier. If you have, you know, or at least I think you know, that I do my best to cater on a personal level. This is how I run my small growing business and how I plan to keep it.
I will eventually come to a conclusion on whether I will continue to stock these batteries based on the test results. These batteries don’t seem to under or over perform more than any other brand that I carry. Nor has anyone ever contacted me and complained about the performance of these batteries.
I’ll keep you posted,
-Shane
I will have a better comment on the voltage drop when i do my own test.
I said it right about Pingyi, I feel my cells are new Samsung but something is not right about the Sony cell mixed in. This is the trust issue i have.
-Shane
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.
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
@ 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.
Why you think you wasted it when you can easily wrap it with some tape…
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?
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.
Hope you sort things out with the manufacturer.
No, but I do have a very good multimeter in the Innova 3320.
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.
Interesting, but what about the other users who reported problems?
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.
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