So you must have made some mistake. 21700 is 24245 mm³ and 26650 has 34510 mm³.
Yes, really.
I don’t see HKJ test of Basen 26650 but I see one from Mooch:
About 4050 mAh at 15A discharge.
Compare that to 30T which delivers nearly 3000 mAh at 30A:
And note how Mooch doesn’t provide internal resistance of this 26650 cell but rates it as capable of 23A. Yet it rates 40T as 30A. Just like Molicel P42A.
Compare the 26650 discharge curves above to that of Molicel:
26650 sags to 3.15V at 30A while P42A stays above 3.55V.
So…P42A is significantly more powerful and has 5% lower capacity at 15A…
I suppose you mean 4300 mAh? Here we can use the HKJ comparator.
8% capacity improvement at 10A and 9% at 20A. And still higher internal resistance (0.02 vs. 0.03). Again, that’s compared to P42A.
Charts and numbers, real world proves a different thing.
So I tested again the Basen and threw in the comparatively new 21700 Samsung 40T. And got a surprise! On my 17 emitter Ham’r flashlight with 5 drivers one cell testing shows the 30T to deliver 30.3A. The Golisi Gold 26650 can do 27A. By comparison the Basen does 21.9A and the surprise comes from the 40T, it bested the 30T with a huge 32.3A draw!
This is a heavily modified Q8 than I normally run on 4 Samsung 25S 18650’s to the tune of over 23,000 lumens.
Back to the original question, why ask Hank to re-tool an existing design for a new cell versus asking him to design a new light around the relatively new cell? Re-tooling for a quarter inch of space seems unlikely.
I was actually never all that impressed with the Shockli 5500 in my lights. For a time the black and gold LiitoKala had me buying more, but the Golisi Gold changed that. The Shockli cells I had were good performers, no doubt, but not game changing or head of the class performance wise.
But, in interest of staying up to date earlier today I ordered a pair of the new Sony (Murata) VTC6A 21700 rated for 4100mAh and 40A continuous. We’ll see…
I was ordering something from Banggood, so I threw in some 26650 Golisi Gold. Took a while to arrive. Just Google it. Some say they are best if you are driving your battery over 7 amps a lot, but the Shockli 5500 have longer runtime for use under that. But they are both quality batteries.
Just to clarify. If I specify a black light with the 1A LED and red Aux LED with Anduril firmware, I will get a light with the same multi color aux LEDs as the D4V2?
One more question:
What is the difference between the SST-20 and the XPL-Hi in 6500K in this light?
does one get brighter or have more throw or less heat?
Thanks
It’s often mentioned that SST20 LED gets hotter faster than the XPL-Hi LED.
XPL-Hi can also reach a bit higher brightness than SST20 (however, in the case of the D4S, the battery may be a limit on how much 1x 26650 can power 4x LEDs).
(Emisar’s specs for the SST20 is “4200 lumens max” and XPL-Hi is “4300 lumens max”)
Hotspot size comparison for Emisar D4S with XPL-Hi 5000k (left side) and SST20 5000k (right side)
The SST20 has a slightly more focused beam (slightly smaller hotspot) than the XPL-Hi version.
(distance of flashlight to “wall” is around 18 meters / 60 feet)
Beamshot video of D4S with SST20 5000k vs D4S with XPL-Hi 5000k (mainly for hotspot size comparison):
Regarding throw, check if you can notice their differences in throw:
(distance of flashlight to opposite building is around 150 meters ~ 400 feet)
Don’t check any of the boxes for auxiliary color. If you leave them blank, and specify Andruil, you will get the D4SV2.
This is beginning to sound like old video game cheat codes. Hank really needs to create a new product listing for the D4SV2 to avoid all of this confusion.
