Reference: mitro's pile of battery graphs

Batteries and Chargers Rechargeable Batteries
38

Thanks for tests mitro, very interesting - very entertaining! :)

Ok, AW´s are old BUT I think you have kept them in better shape than a big deal of users would ever keep.

They seem to perform well on two lower current tests but omg with that last one...

I would have bet my money EVEN on 1yr old AW´s, seriously I´ve had the image of better performance on ridiculous amps...

Panasonic is really gearing up in battery race. Do I remember correctly Panasonic owning Sanyo?

So, they have the NiMh covered pretty damn good I´d say, with Eneloops. Now this. Whew... :o

39

Thank you... and thanks for all the testing you've done.

I did the 10A discharge on the cell because Panasonic says it can. I had already done it once for my initial tests, but its gotten stronger since then. I'm not here to sell CK cells. Jordon was nice enough to give me one to test and if the results were poor, they'd be in the above graphs. I like cells that perform up to, or beyond, expectations. I think we all do. :)

40

LOL It looks like that, but I assure you, they were charged to 4.2v.

EDIT: I think I may need to do a 7 or 8 amp discharge to fill in the gap to see where it goes south.

41

Those guys would cry foul, but i guess if BLFers would want to counter AW, better do another 4.2V discharge @ 10A, and then after that 5A to show that it has not been damaged. "PROVE BEYOND REASONABLE DOUBT".

It's not a damaged cell, the 1A and 5A mAh results confirm that.

Anyway I am charging HKE's NCR18650A, but i can only do 1A. (ouch)

42

I'm not here to prove anything. If anybody wants my AWs to test they can have them. BUT... they have to test the CK HD too. :)

43

I think enough people have IMR's , but not everyone has the equipment to test @ 10A , and I think some of the CPF posters were counting on that , almost like a crutch .

I havent checked yet , but I saw mention of getting banned ??? I'll have to check that out ...

Seriously , thank you mitro ,

44

I think I should test the CK @15A :)

I ran them all at 7.5A today. Everyone have their harnesses fastened? OK... hang on!

WWWWWWHHHHHHEEEEEEEEEEE!!!!! I've never been on a discharge graph rollercoaster before. :) I assume thatis not good. No... I KNOW that is not good. At 7.5A the AWs are on the edge of having useful capacity, but the temperature of them is getting so high that any cracks/nicks in the wrapper are getting bigger because the wrap is shrinking. So the AWs still work... just not well.

45

appreciate your effort! Keep it up

46

Ok but if you blow it up i'm not sending a replacement LOL

47

Wow, that's a crazy discharge graph. Maybe the battery got a second wind. So at 10A, the test lasts about 12 minutes or so? (for the CK's, looks like the AW's won't make a minute).

48

Here you go Ted (the graph shows voltage/minutes):

Jordon: If I blow myself up and I'm NOT dead... my wife would most likely kill me for being stupid. If I did manage to survive both, then I'd happily buy a couple. LOL

49

For kicks, you should try the BIO IMR 18350 for "comparison". Like i said, i think they might be better than AW IMR. IMR 18350 gets around 900mAh, how about 2700mA (3C) and 3600mA (4C) Be careful. Coz i am going to see if 3 x 18350 works in DD in my SR3800, but will be very careful about the cells temperature. So far the 18500s work with nearly 4 amps and cell temperature is quite ok. The 18500 have only about 100mAh more capacity than the 18350.

50

I’ll test the BIO @ 4A and maybe carefully try 5A as well (3A is already done above). I still have to put the spring back on my Skyray or I’d just try it myself (I have 4 BIO IMR 18350s now).

51

I have 6 BIO 18350s. hehe... oh ok no worries bro, so 3A (3C) is done and all looks well. Seriously 3 x 18350 in the DD SkyRay SR3800 triple XM-L is just for fun, i don't suggest the guys try it (at your own risk obviously)

52

wouldn't be surprised if the BIO cells come from the same factory.

53

To end the saga of the AW IMR vs. CK High Discharge 18650 I wanted to how a new AW IMR performs compared to my older ones and the CK cell. Jordon was nice enough to actually buy me an AW to test (thank you again) which shipped directly from Oveready to me.

Here's the best of my old AWs vs the new AW vs. the CK HD cell:

3 Amps

5 Amps

10 Amps

So the AW IMR does have a clear advantage in the voltage department when we start drawing 10 Amps from the cells, but how many applications do we need 10A+ and only with 1500mAh to use? Then again, if I only need 5A I could go with a Sanyo 2600 and even get a bit more capacity. Its all a trade-off.

I'm just disappointed that the cells I bought a little over a year ago are basically useless.

54

Thanks!

I'm pretty suprised on the 3A and the 5A tests The 10A test is about what I expected. Like you said its all a trade off. IMO for Flashlight users I think it will work out great.

Currently my highest power flashlight is the KD C8 XML T6 3-mode the tailcap readings are as follows.

TF Flame 2.82A
X-tar 2600 3.03A
CK 2250 3.7A

55

mitro's King Kong 26650 #1, #2, #3 (INR26650E)


Number of cells: 3
Purchased: 11/2011

Condition: New


3.0 Amps with comparison to MKNE 26650

Cell #1: 4191 mAh

Cell #2: 4087 mAh

Cell #3: 4233 mAh

Best MKNE 26650 (from TacticalHID) first test @ 3 Amps : 3989 mAh

5.0 Amps

Cell #1: 4130 mAh

Cell #2: 4073 mAh

Cell #3: 4238 mAh

Taking the weakest one (#2) and punishing it with 10 amps:


Uhh...

result: 4156 mAh

unreal.

Comments:

I will likely do further testing, but its clear already that these cells are the real deal... as in really good. :) EDIT: I don't think I need much more testing after that 10A blast. I'll probably do a 1A discharge on my hobby charger, just to confirm 2100's findings. (edit: see below)

Discharging the #1 cell on my hobby charger using the NiMH setting and discharging @ 1A to 2.6v, I got a result of 4339mAh. So a little lower than 2100, but still very good.

56

Wow, 10A and 4156mAh, even though there some sag.

Would you please test the strongest one @ 10A too

BTW: the 5A photos are CK not KK.

Thanks for the results Mitro.

57

I fixed the graph. :slight_smile:

At 10A the cell is only getting warm, and the graph looks fairly normal, so I'll happily test #3 @ 10A. I'm guessing we might see 4300 mAh. I don't know about 20A, but @ 10A these are hardly breaking a sweat.