I’d be thrilled with a Q8 bored for 46800, with onboard charging, and an optional handle like that would be nice.
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What is the weight of the 46950?
Around 420 grams.
Ask them, if enough do we might get it. Or email Freeme he seems to get some traction with the manufacturers. Sofirn Q8 Plus is a favorite of mine too.
The only problem with that is that most mfrs will a) go for throw, and b) go chasing lumens.
Rather than having a great light like the OG Q8, ie, warmer and floodier, they rod it for a throwier beam and mega-lumens.
I’d rather have a 1S1P light with stoopit-long runtime, more for use as, say, a shtf light (speaking of tornadoes, etc.) that can be used for ceiling-bounce or with a diffuser to act as a lantern. C-to-C would satisfy those who’d also want to use it as a powerbank (I could do without that, but you do you).
Like, not every light has to outdo all the others for throw/lumens, but that’s what most mfrs would insist on.
Forgot who, but Sofirn or Wurkkos had that nice Q8-on-a-stick, similar to the 170buk one but not nearly as pricey.
I’d be fine with 3000lm-5000lm like the OG, but with handle and bored for 46800. Stuff it with “ancient” MT-G2s and I’ll be in Hawg Heaven.
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I’d like a very floody headlamp (4000k) with one of these batteries, that gets like 15 hours of runtime
I’m tired of waiting for someone to come out with one, i would have made my own already if I had a house with a shop in the back and enough money to buy a CNC machine
But I don’t
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I like the idea of the huge run time, but the biggest headlamp I have uses a 21700 cell. I got it for the same reasons you discuss. Frankly, it is just too damn big, bulky, and heavy to be comfortable for long term use. So it sits in a drawer, while the 14500, 16340 lights get all of the use. I can get that 15 hours with a couple of spare cells in a pocket… Now something like the Q8 with the big cell sounds more interesting (and, for me, useable).
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46800 in a headlamp? Does the neck-brace come with the head-strap? 
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I meant helmet mounted
Us marines carry 10 lbs of s*** on their head
I don’t think 500g in a battery pack on the back of the helmet and 300 g for the light on the front is too heavy
Lumintop hit Mach3.0 with a double 46950 battery. Too new or limited to find anything else where on it yet. Looks like 8 Cree xhp70’s. 360 watt max power which is well under the 700-1100 watts these batteries were rated for. Nice LED screen, would like to see this in single cell format for that super soda can. I’ve got the Mach And I’m always thinking “If it was only twice as bright I’d truly be happy” At $399.00 out of my price for now, maybe after Christmas. Anyone else find anything else on it? $323.19 on Aliexpress looks more tempting.
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One option is to use a magnetic charging cable. I have one of these: Magnetic Charge Cable - ProgressiveRC, and I’ve been planning for some time on making an adapter for my SkyRC MC3000 (to be inserted in the charger like a normal battery, and to which such a cable would be plugged). Apart from the fact that the maximum charge current from the MC3000 is 3A (so about 10h to charge one of these batteries), it should work nicely.
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That is very tempting. Im surprised Lumintop actually built such a light.
Of concern:
The lack of surface area of the heat sink fins to dissipate that much heat.
The tiny reflectors in proportion to such large emitters.
The apparent inability to balance charge both cells in series; ultimately leading to a dangerous voltage mismatch of the cells.
What are your thoughts?
I’ve got the Mach 4695 right here in front on me so lets compare the differences.
- Lack of surface area. Mach 46950 has 4-68mm fins and a fan. Mach 3.0 has 4-78mm fins that look twice as thick and a fan. Mach 46950 list 234 watts max and the Mach 3.0 as 360 watts max.
- 68mm vs 78mm so 15% greater reflector diameter vs 40% increase in LED diameter, so more flood.
- Biggest concern, however these batteries are at most only pulling 1/4 there ability at 360 watts. These cells came together are used together and should only have very slight mismatching over time. If I buy one I’ve got an Olight cable charger and a good DVM to keep them balanced.
I managed to get the 46110 cell and body to run mine and it last for a really long time before recharges. I’d prefer if they had done that with this Mach 3.0. However I see the need to double the voltage to keep the current lower and not burn up circuits or use very thick wire for possible 100 amp loads at 3.7 volt circuits. But wouldn’t be nice!
Thanks for your comments on your Mach 4695. Compared to the massive copper heat sinks (with heat pipes) I own (which once cooled 400 watt processors) the Mach 3.0 appears to contain about 1/5th the total surface area. While for different applications with different requirements, the Mach 3.0 appears to be sorely lacking, regardless of the air velocity generated by the tiny cooling fan. I hope Im wrong. Even so, Im sure something has got to be far better than nothing.
Curious how hot the Mach 4695 reaches on turbo after 5 minutes, or does it step down to protect itself? Any complaints?
I also own a pair of Olight cable chargers, so that would be a great option to bring the lowest cell back into sync. Of all my serial celled tube lights, the battery closest to the emitter (after a long sustained run) always finish with lower voltage than the cells farthest from the emitter, which makes sense that they would. I suppose not a concern for those who monitor actual ending cell voltages, as I always do with cells in series.
Agreed about using the 46110 cells, which sure would have been a VERY nice touch. The light is already long and heavy, so whats another inch and a couple more oz?
If AliExpress is to be trusted, 4 have already been sold. Lots hope someone posts a meaningful review.
Have you found a source for name brand 4680, 4695 or 46110 cells yet? Lumintop doesnt appear to sell them separately, which seems odd. All the AliExpress listings appear to be the same generic cells with a different wrapper. At least buying directly from Lumintop would offer a higher reliance in quality. Ive had great luck with all my Lumintop cells, which have aged equally within the same batches. This leads me to believe they are cautious of which cells they slap their wrappers on.
All in all, the 3.0 appears to be in intriguing light. Im glad you posted to give us something to think about.
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It holds the brightest for about a minute then auto steps down on a thermometer. More resets and quicker drops. When lumintop first carried the 46950 Flashlights to go had some 46950 and 46110 batteries with tubes for sale so I bought one. 15mm’s for 6000mah more, good upgrade. But I did miss speak about the Mach 3.0 on the 46110. I think the whole light could run on just 1 cell, shortening it by 80mm’s. These cells have a posted rating of 700-1100 watts and this only eats 360 then drops as heat builds up. Granted wire and foil traces would have to be twice as thick and more than 360 watts drawn to keep the same 50,000 lumen brightness. However this light would then drop to a claimed sustainable 10,000 lumens which is only slightly brighter than the Mach 4695 claimed 8,000 which in it’s using I believe.
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OK, that makes sense. I will assume the 3.0 will also ramp down quickly, so heat management is a non issue. Still, the thought of 50k sustained lumens would be amazing in such a small package. If the 3.0 can sustain 10k lumens, it should have an impressive run time at that setting with 2 cells. If only they would incorporate a proper copper radial heat sink (packed full of thin tiny fins) to manage heat transfer, but that will never happen. Maybe you will get your wish with a single celled version at some point. Fun stuff!
I just called EVE and left a message with their sales dept for some 4680 cells. Emailed them too. Fingers crossed that they will come through for such a small quantity shipping to an enthusiast (and not an auto mfgr). I’ll post the outcome once I hear back, but I dont have high hopes. Tesla fell through after several calls to various depts and referrals, as they maintain tight control of distribution.
Would like to move forward converting my GT4 to 4680’s, while avoiding generic AliExpress cells.
I just stumbled upon the Liitokala 4695E (46950) 30.000 mAh in the Littokala official store on Aliexpress, which now has an ‘early bird deal’ (limited offer) which brings it down to € 24,99 (with free shipping): LiitoKala 46950 Akku 3,7 V 30 Ah 4695E Kfz-Zündung, Energiespeicher, Wechselrichter, zylindrische EV-Autobatterie - AliExpress 44
(You can also order higher quantities, which will even make it cheaper!)
Not much info to be found on it via Google. Also, the information listed on Aliexpress is contradicting itself in several places. (The information in the despriction differences from the 2 pictures which also list specs.)
What is remarkable is that it has a special ‘negative tab’ on the positive side, so it can be used in 2 ways.
I’ve just (impulsively) ordered one (for the €24,99 price) to test and maybe drop it in a DIY powerbank casing from AE. (I haven’t got a flashlight in which it will fit.) EDIT: (free) shipping in the AE store is really slow, so it will take a wile before I will recieve it.
On a sidenote:
I noticed that Mateminco offers the MT001 with an included 46950, so maybe they would be willing to sell a few or at least want to share a datasheet of it?!?
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Based on the listing page it looks to me like the Lumintop DF11 has the battery integrated into a aluminum housing so it has the same disadvantages as a proprietary battery pack. No mention of the battery being removable from the housing or replaceable that I can see. Will the battery remain available after the light is obsoleted by the maker? Also all of these super sized batteries have limited availability compared to the current industry standard sizes such as 18650 and 21700 and they limit the circuitry to single cell low voltage which limits light output. Not sure that I see the advantages of these single over sized cell lights other than potential run time at lower lumens outputs of 2000 or less. These days heat buildup limits most light’s sustained output to this range or less. I wish all flashlights listings included sustained output at a set temperature such as 70 degrees F ambient.
The Lumintop DF11 and Mach4695 are interchangeable, which is what I did to mine. The cell is held in by a glued in brass retention ring. It can be removed. Much safer for the muggles in it’s sealed form. Rated for 2000 recharges it’ll be awhile before it needs replacing. Buy then it’ll be obsolete like the flashlights we bought 15 years ago.