@ Xenovora. Thanks
I do not know. Others on here are more knowledgeable.
Here is a comparison with another light between the Golisi and the Vapcell 5500[PLB-55A].
My friend Otto who has the FT03 also modified a Mateminco MT35 w/ XHP50.2. He said it is 4000 lumens at turn on with Golisi and only about 3100 at turn on with Vapcell. That alone will show how much more initial output the Golisi provides.
I have multiple Shockli 26650 5500mah and Vapcell 26650 5500mah. They are the best high capacity 26650 in existence and still has very high current for its capacity. Both are same cells, which I tested closer to 6,000mah. If it makes 3,750 lumens with the Shockli, the output is not bad considering my Acebeam K75 with 4 high drain VTC5D only makes 4,100 lumens. I ordered this flashlight the moment I was sent the code so I will test it to see once I receive it. I might have to buy some Golisi 4300mah. Looking at HKJ’s comparator, it’s performance should be close to the 40T but it won’t crush the springs or get crushed since it is a 26650, which this light is designed to fit.
I’d like to know in what order the measurements were taken. If the 40T was tested first, it could have damaged the springs which would explain the lower than expected performance with the Shockli 5500mAh.
Hmm…never though of that. The performance difference does seem quite normal though when you look at HKJs 20A chart. I don’t think mine’s shipped yet but I’ll test the amps when I get it. Max output should be a bit above 22.5A.
So there’s a potential that the SBT90.2 only draws 20A and the Shockli could be better after all, since 30A may never exist in the NI40?
Th558 above says should be 22.5A or better - not sure how he knows that. The Shockli won't be "better", if better means higher amps at full charge. Did you look at the discharge curves from HKJ's comparator?
There's a tendency by some around here to recommend the Shockli as the best battery ever, but clearly it's no where near the performance champ for the first few seconds at full charge. It's got great discharge characteristics though over the full discharge cycle, making it a great candidate for general use - again, not for max output use in the short run.
I can deal with a “few seconds” just not 10-60 seconds haha. We’ll have to wait until output over time graphs come out for the NI40 using diff batteries to show just how sharply the curve begins.
Yes, I looked at the comparator curves but it’s not entirely clear to me still.
Well for these kind of lights that are FET driven, higher voltage on those curves mean higher amps, which means higher lumens/throw. It's not a direct relationship however, so doubling the amps doesn't mean doubling the lumens - it's lower than double, and at higher amps, it could be much lower than double. Basically you lose efficiency the higher the amps are. So we tend to push the LED's way past their rated max, and once you get into that territory, the gains are less. I'm sure heat is a factor in the reduced output.
For the batt discharge curves, we want to see the voltage as high as possible for the full discharge. If you look at various know good cells vs. avg cells, at differing amp levels, you can see the better cells will have higher voltage curves.
Take a look at a Samsung 30Q vs. a 30T, then look at the 1A level, then the 20A level. At 1A, almost the same, but at 20A the 30T far exceeds the 30Q. Those 0.2V/0.25V differences makes a big difference in amps.
I got it from a graph in the datasheet you posted. I’m not sure if it’s correct but it showed the voltage and Relative Luminous Flux.
Ahh, ok. The charts on page 7 here: SBT90.2 LED Spec. They kind of end at 22.5 amps, and it seems like the Vf would be low enough to be obtainable on a good FET driver. We'll have to see. I'm wondering now about the Acebeam TK75 getting a rated 6300 lumens. They would have to hit at least 30 amps to do so. Specs could be overrated.
To me, this light may very well need a GOLISI cell. The amps out of a single cell is crazy, about as much as my triple XHP50.2 3V Amutorch X9, custom modded of course... I hit just over 30 amps on a GOLISI in that light. But i also get about double the lumens (11K-12K or so).
I agree and I am prepared. Also have 4 X Aspire 26650 4300 as back up. All brand new cells.
Where is the best place to buy a fresh GOLISI 26650?
Without some kind of high current spacer no one should expect such a high current light to support both sizes. The size difference is just too big to maintain proper contact for both sizes.
Even bypassed springs will work better when there is higher spring pressure on the terminals. All things equal the shorter battery will always be inferior in such a setup. They need to just stop advertising support for both.
Are the Golisi 4300, Aspire 4300 and Shockli 4300 the same cell? According to HKJs graphs the Shockli seems a bit worse than the Golisi in the first 700mah. Are they normal variations in performance or are they different cells?
Edit: Mooch says the iJoy, Aspire and Golisi appear to be the same cell though in HKJs test the iJoy seems to perform a bit worse than the Shockli/Golisi.
In the states- Shipped from Texas Only 14 left
https://www.vapewild.com/golisi-imr-26650-35a-4300mah-s43-battery/
Europe or elsewhere-Shipped from China
No,Shockli 4300 has more of a voltage sag especially at 15A and above.
Golisi and Aspire have been said to be the same cell by the reviewer below.
Not sure - I wouldn't trust those Shockli's though. Yes, definite differences there - look at capacity differences as well - Shockli's test higher. I got a whole bunch of 26650 cells. The iJoy 4200's do pretty good, but less than the Golisi's.
Wow, the Soshine 32650 blows away the Golisi, and the 30T for that matter... Hhhmmm.
Vinh claims his modded K75 to deliver fewer lm, so yes, they are overrated. :down:
Ok - his K75 mod is here: https://skylumen.com/collections/v54-lights/products/acebeam-k75vn-best-ultra-thrower... 5300 lumens max, with a little bump in throw to 1.75 Mcd, if 250 kcd is a little...
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