This JP 30 battery has higher discharge voltage like 4.35 volts li-ion batteries.
What does the “B D” indicate in the legend for some of the curves?
ANSI Beam Distance, like the axis label on the right. I should just use “distance” tbh.
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The JP30 is in another level. Ampace Claim 36A only but I have it tested up to 45A and does not suffer much sag. Maybe for longevity? the true is that is able to deliver the full 3000mah under 40A.
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That’s crazy. Thanks for the info! I hope NKON will bring them to EU soon.
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They now have JP40 for preorder and some cell Reliance RS50. And listed EVE 50PL but with Out of stock status for now.
The 18650 list also has some new items, like EVE 30P.
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I’ve send an email today to Nkon, to ask about the JP30 and if they were planning to offer that one too, and I got a reply that they currently don’t have plans to offer it. He did mention though that he will pass on my ‘suggestion’ internally.
Not relevant to this topic, but just as a sidenode:
In the same email I asked if they also had plans to offer the upcoming Xtar VX2 Pro charger (since they already sell Xtar chargers), but the answer was the same as for the JP30.
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I have no clue if my ‘suggestion’ was passed on internally and helped in any way, but I just noticed that the JP30 is now available for preorder at Nkon:
https://www.nkon.nl/ampace-inr18650-jp30-3000mah-36a.html?___store=en
So @ebastler , it might have taken a bit longer than ‘soon’, but Nkon does bring them to the EU as you hoped!
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Howdy everyone!
Just got a nice set of 4x JP30, shown below already loaded in my SkyRC MC3000 (could not load them in my preferred charger, the Gyrfalcon S8000, given their positive terminals are way recessed and only the MC3000 was able to make reliable contact, thanks to its terminal nubs):
For what it’s worth, bought them off AliExpress (I know, I know – but was the only way, tried to buy them off @vapcell-sales18 but after a promising start, they stopped answering my PMs, so I just gave up). Cost was just under $5 each, including shipping and all discounts, and took about 38 days to reach me here in Chile.
I’m really impressed with their low IR: 2 to 3 mOhms, less than half the already low 6-8mOhms I see with my Molicel P30Bs (and I understand it has to be that way for them to be able to provide the constant 56A they are supposed to provide with temp cutoff at 80C without burning down the house, but color me impressed anyway).
What I’m not impressed with is the low voltage they came at: 3.48V is way too low in my book, I’m used to see batteries being shipped at at around 3.7-3.8V (ie, about 50% SoC), the only time I saw a battery coming in from a seller at such a low voltage were with the Sony/Murata VTC6 I bought at NKON a couple of months back (these came in at 3.49-3.50V). So I must ask: is shipping with such a low voltage (and presumably such a low SoC) normal with high-current batteries?
The other suspicious thing is the wrapping: not OEM as I’ve seen here and elsewhere, but full Ampace labeled with logo and all, including a QR code (which seems to be fake, since it decodes to just “5555555” – that’s it, 7 times 5). Dimensions also look strange (as in, way too small) at 16.9mm diameter and 63.9 length.
Looked for an official datasheet online but could not find it – albeit it surely exists, as part of it is teasingly displayed at the DIY500AMP web store page mentioned above, so the best I have to go on is the specs table shown at that same page.
Planning on doing a couple of CDC cycles to test them and try to determine their true capacity, charging up to 4.2V@1.5A and 75mA termination, and discharging down to 2.5V@0.6A with just voltage cut-off (which as far as I was able to determine, are the standard Ampace-recommended charge/discharge parameters for the JP30).
Will do it tomorrow (it’s late night here already and I’m definitely not going to leave those batteries operating unattended), so if any of you can offer any tips, suggestions or warnings, I will be sure to check this thread again tomorrow before starting the tests.
TIA, and one way or the other I plan on posting my results here when I have them.
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Thanks for the heads up. For what it’s worth, that page has been showing a pre-order notice since I first checked it, and right now they are promising a Nov 5th shipping date:
Estimated shipping date: 05-11-2025
This product is for pre-order, we don't have it in our warehouse yet but it is in transit to us
from our supplier. The shipping date is an estimated date. If you order this item and items
from stock we will make one shipment.
Anyway, it’ s good news as I would rather buy any future batteries from NKON than from AE.
Has anyone actually purchased JP30s from NKON?
3.48V is actually excellent.
The lower the voltage, the better the calendar life 
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Thanks for the tip, but are you sure? I thought that anything too far (either below or above) 50% SoC, which would be 3.7-3.8V, would mean damage over time in storage for Li-Ion batteries…
Yes. Staying closer to 50% is better for cycle life, but not for long-term storage.
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Thank you for this! Also, congrats on your finding the datasheet, I tried to but couldn’t find it anywhere. Your Google Fu must be really strong!
So according to my MC3000 measurements, my JP30s at 3.48V were just a bit (0.02V) below the manufacturer-recommended shipping voltage range (3.50-3.59V). Much better than if the recommended voltage were 3.70-3.80V…
Since it has been a long time (almost an year) since I last used my MC3000, it was very probable that it lost its calibration, so I just double checked with my UT210E DMM, and again all 4 batteries were at exactly 3.48V, so I guess that is it.
Thanks again @Qubeet and @BlueSwordM for your reassuring comments re: the JP30 shipping voltage . Gonna start the cycling procedure now! 
Dug a bit deeper and found it on NKON.NL, available directly from the “Documents” tab of their product page: https://www.nkon.nl/en/amfile/file/download/file/739/product/5848/
OTOH, the PDF states “NOT final version” in a watermark in every page and that is hardly reassuring… Was anyone able to find a different version of this document (or actually, any official document from Ampace regarding the JP30 detailed specs)?
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Charge-part of the cycle finished OK: the batteries received respectively 2288, 2333, 2329 and 2319 mAh. If we take these as the amount of charge they needed to reach their nominal 3000mAh capacity, then it would mean their initial SoC was between 22% and 24%… concerningly low IMO, specially given their temperature only rose from 20C to 25C, which would mean not too much energy was turned into heat during charging.
Anyway, the discharge phase that followed, started after a 30-minute rest, abended due to a time-out (I forgot that on the MC3000, the time limit is for the whole cycle and not for each separate phase, and wrongly programmed a too short time limit), so I’ve just restarted the procedure. Let’s see what capacity the discharge shows for each battery before making any judgements…
Discharge part of the first cycle done, and measured capacity was pretty much nominal:
Not bad in my book, and WAY better than my previous high-current battery purchase (4x Molicel P30B also from AE, which clocked at around 2500mAh/battery).
Will give it a couple of cycles more in the MC3000, then put it in my drone and test continuous discharge at 10A, and and then post the final results here for y’all.
But so far it looks promising, certainly better than I expected.
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Thanks! Good to see you back…
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