Official specs say
500 cycles at 4.2A charge and 10A discharge for 80%
I think around 400 cycles are realistic, but that holds for most high quality cells.
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That would be awesome!
Im planning to run my 12s4p at 120 battery amps. What is your battery discharge and regen current set at? Im thinking 32A should be a totally safe regen current on 4P since they are rated for 8A fast charge.
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I have 2 layers of 0.15 2p nickel strip.
It works but pain in the ass to assemble and also takes forever to print. My original intend is to make a module more compacted than NESE and it has achieved that. As more decks with bigger enclosures and cutout are coming out I don’t see the necessity of using mine over some of the remix of NESE like @mishrasubhransu ’s design. Also I have acquired a kweld for myself so spot welding is much easier for me atm.
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Doesn’t those battery test run the cells at constant load all the way down to 2.5V? AFAIK that’s the standard way ppl test cells. And for our use cases. Capacity is Kept certainly better than those lab tests.
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From reviews I’ve read, people have gotten 1000+ cycles out of HK graphene, compared to typical expected 50-150 cycles for normal lipos. But many people have also reported puffy pretty early.
It’s hard to not do 13s after you’ve done it once…
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Yeah, that’s true I guess. But it’s also constant 10A and cells aren’t glued together in a pack and put in a tight enclosure. So thermal conditions are better in the lab and discharge is constant (maybe 10A is exactly the sweet spot) and not going all over the place from 1A to 35+A or more. Depending on your pack and use case the average current consumption might also be higher than 10A.
All things considered I wouldn’t expect more than the rated specs. If you could do that, they would test differently.
Smartphone batteries also have an average cycle life of 400 to 80%.
Can somebody measure the real diameter and length of these cells?
Please DO NOT use a caliper when meassuring length unless you want to smoke yourself 
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That can’t be correct, the cell is a 21700, so should be around 21mm of diameter and 70mm of length
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Sorry I think you mean they 18650 cell. We have some in our factory. I measure later.
Damn! I’m too anxious, couldn’t wait.
These cells seem to be top of the notch these days, even better than the 30T and 40T together
Hope they come balanced
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I found every seller listing slightly different size tolerances. Liionwarehouse had the best dimensions. My cells from batterybros were pretty consistent in voltage. range is 5.530-3.545 (photo at *Nutty 100-40* Subsonic Century AVIO mk2 P42A 13s4p)
I’ll measure a few cell tonight (with plastic calipers)
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5 cells pretty much 70mm long right on the money. 21.3mm diameter.
Alan, one thing I noted vs 30T looking at reviewer discharge graphs. Early in the discharge curve, they drop off a lot. Until about 1/3 discharged. Then they catch up and pass the 30T. So won’t feel that fire of a freshly charged pack. I’m going 13s on these for that reason.
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I think the moli-cells outperform and out cost… but I need that shit…
thinking about a 12s2p… is molicel the answer?
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I made a psycho ocd table
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Man, Even with the groupbuy the 40T pack I’m getting would be close to the same as the Molicell I was thinking of getting. Still can’t wait
for this 40t pack though!
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let me know what ya think…
I wanna press the P42a’s into service and make them work…
I could do 40T but then the next year I’d wonder…
at least now I’ll know
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Gimme 4 weeks and it should be rolling…
I think the near future/next year people are gonna go p42
Even though it’s only a .2ah and 5amp discharge difference from my findings
(Although it’s rated for 45a discharge it’s is really only 25 continuous, 30 under 100°c and above that it gets sketchy)
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Would you share the link of that curve?
Has anyone used the P42a cells with NESE 21700 modules? Do they fit? @Agniusm ?
EDIT: nevermind I should search before asking.
Looks like they fit: Any p42a cell users out there?
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The 2nd graph shows vs other cells at 10a and 30a draw.
https://www.e-cigarette-forum.com/attachments/ac0bc709-98a9-4496-b721-6f119abd3508-jpeg.806175/
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