Just found this thread! I’ve been wondering ever since I heard of the 4680 if/when we’d see it in a flashlight
Man I was thinking all last night about a 150,000 lumen soda can light. Haha
Haha that’d be amazing. Imagine just lighting up the whole street in front of someone for a second leaving them extremely confused. 50K Lumens from 18x XHP70.2 would require about 120A. I’d be pretty happy with that in a soda can light. They said it has 6x more performance but compared to which 21700 cell? I guess we’ll just have to wait and see.
Ya I have a couple 6500K’s that are on the 10k to 14k range and they put out an amazing amount of light. My imalent MS18 puts out 100k briefly and it’s almost frightening to behold
if these see duty in ESS applications(powerwall) we may get a higher capacity lower drain variant.
such a cell will still be overkill for most any flashlight we could concoct current wise but with huge capacity.
Isn’t this why they built the Giga Factory? So they can eliminate the middle man?
I heard Musk is build a Terafactory that builds Gigafactories (:
More like supply chain second source… alternate / backup.
Cool… I didn’t know they make prototype batteries in Fremont.
From tesmanian.com, first 4680 unveiled:
CBAK Energy Technology, through its BAK Power division, announced that from 2023 it will also produce 25Ah/1kW peak power density 4680 cylindrical cells on a large scale, initially completing their development and receiving samples by the end of 2021. At the recently held CIBF 2021 exhibition, BAK Power officially unveiled the first domestic 4680 cylindrical battery.
Wow! So like 250 amps???
Looks like it’s time to build my laser rifle
Found a link to the article: CBAK Energy Technology Intends to Begin Development on Tesla-Invented
Out of curiosity, I measured a Q8 tube . Just too small to work . Not by much though .
Dunno if this is the first, but it’s the first I’ve seen:
https://electrek.co/2021/09/01/storedot-tesla-like-4680-battery-cells-charge-10-minutes
No link to order them online, tho 
Sweet! Can’t wait for a 46800 powered million lumen light
You must realize 21700 and 4680 batteries were designed to work in packs. With a flashlight the entire outer surface can be used as a heat sink. So a flashlight can use a bigger battery than an automobile. I’m going to wait for the 6080 or the 60160 battery.
Meh. 4680 is already pushing the limits of carry-able flashlight size. Kind of a winter or camping light for me, already. 21700 is my current carry favorite. 4680 is interesting to me because it will allow higher capacity and power in soda can lights. I’m not really interested in anything significantly larger than that (no, I don’t own or plan to own a BLF GT).
The big news here is the construction not the size. They put multiple electrodes along the sides instead of one on each end. This shortens the path electricity has to flow and lowers the internal resistance. Lower internal resistance means less heat produced charging and discharging. This should work with other chemistries such as NiMh.
Carry-able is anything you can carry. A 46800 light is definitely able to be carried. Pocket-able? Well that’s a different term entirely. EDC pocket-able, pants pocket-able, is much different from winter jacket pocket-able. Winter jacket pocket-able is more like holster-able, although a holstered light can be very long, like a 3D Maglite. You can’t put a 3D Maglite in your jacket pocket. You can stick it down your pants though. You might even make some new friends.
What is the limit of Carry-able? I’ve held a garbage can lid in front of me and thought “this is reasonable,” but ultimately I chose a different profession.
I have set the upper limit to the lights I build in my imagination, in terms of head diameter, to about 20 inches / 50 centimeters. As for weight, 20LB / 9KG may be pushing the limits of what is comfortable to carry for a moderate duration using a padded shoulder strap. Golf bag shoulder harnesses that strap over both shoulders would enable 30-35LB / 13-16KG to be carried comfortably, as would a backpack setup.
That’s why I said “for me.”