[M4D deal] Nightwatch NI40 with Luminus SBT90 Gen2 interest list OPEN

Hi Martin. Reports are starting to come in saying that the memory is intermittent. Also mode switching, as well as the button feel/press. Can you check with Neal on that.
That is a huge factor on whether I would want the light, because I would like the light to start out in turbo.

According to some feedback on TLF the positive terminal of unprotected 21700 batteries like Samsung 40T will be crushed. :-(

dissapointing to hear since thats a standard very good quality highdrain battery to use in many lights :person_facepalming:

I would have like to order it but a few things need to be fixed before I consider it. Sorry Martin, I put down my email for the GB, but not this time.

I hope my sample arrives soon to check those points

Does that include the Shockli 5500 battery that was marketed along with the light? Hope not… I bought two of those batteries and 2 lights…

Nope. Thats a 26650 so it’s fine.

Was there any supposed advantage had issues not been found, with using 21700s instead of 26650s for this light?

Nagonka from TLF forum got 4950 lumens at turn on with a 40T compared to only 3750 from the shockli 5500.

WHAT D: What’s up with that…… I wasn’t aware of such poor performance of the Shockli… is there another fitting 26650 that puts out comparable output for the claimed 5k lumens?

Now I may have to refund these two batteries… potential headache lol. Only had to return one mail item in my life. Well actually a need for more but I couldn’t bring myself to jump through all the hoops so Ive kept many unsatisfactory online purchases unfortunately.

I wish I could read German.

The shockli (PLB 55A) is the best high capacity cell you can find but at high currents it’s no match for the 40T.
https://lygte-info.dk/review/batteries2012/Common26650comparator.php

So in other words, this response was misinformed? Since it can’t do 4K+ at all, not to mention very well or efficiently on turbo….

Hi BLF. I was long time lurker.My name is Baron.

This is a 26650 light. That is why 21700 battery gets damaged and so can springs. My friend has FT03. He got same results with that light when using 21700.

You will sacrifice run time, but I believe the best 26650 if you want max output will be the Golisi 26650 4300 35Amp Or the Aspire 26650 4300mAh[rated 30Amp by “Mooch”].

Cheers

Welcome Baron, and thank you for your insightful response and battery recommendations!

So can someone share the ratios of output/battery capacity gained/lost between the Shockli 5500 and the Golisi 4300?

In other words, how many more OTF lumens are gained and for how much longer will it sustain said max OTF, compared to the total capacity sacrificed?

We talking closer to 2% more lumens for –25% capacity? Or more like 15% more lumens for –20% capacity?

I promise you, there’s no way you’ll be able to return the batteries.

Yep, the GOLISI, and other re-labeled equivalents, are the best performance 26650 cell. Comparisons all depend on the power draw. Look at the battery comparison of the Shockli vs. the 40T - at 5A draw, not much difference, but at 30A, big difference. But the Shockli at 20A maintains the full 5500 capacity which is pretty incredible.

I don't know what the amp draw is for this SBT90.2 version, think it's pretty high though like 15-20A, maybe?

@ Xenovora. Thanks

:beer:

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.