EMISAR D4S V2 26650

It should be possible but it is not the best idea because you loose a lot of runtime and brightness. Also the AA alkaline batteries are known for leaking.

If you use only the muggle mode with three rechargeable AA batteries it should work well. Most likely they won’t deliver more than 1000 lumen. Maybe you could also use a protected 26650 battery?

I looked at the topic closer…
Quite a few 26650 lights support 3*AA. But 3*AA holder is actually over 30 mm in diameter. Too large for D4S. :frowning:
Protected 26650 probably won’t work - Emisar lights don’t tend to support protected cells.
Anyway - while I feel that protected Li-ion cell threadlocked in a rechargeable light would be a fair choice I would still feel better with NiMh.

A short time lapse of the heat development with XPL-HI V2 5D emitters:

Threads are a major barrier…thank you 0-8-15 User. :slight_smile:


I ask for help. Can I set the desired color(RGB aux LED s) of auxiliary diodes or change constantly?

There are a bunch of settings and you can have them different for different modes. I have mine set as a fixed color (usually red or magenta) when in “normal” mode and flashing or battery check when locked out.

Has anyone measured the current consumption of the XPL-HI and Nichia versions in turbo mode?

If I recall correctly, the Nichia version has a Nichia-specific firmware that limits the current for the Nichia version (assuming the Nichia version Anduril firmware is used). Something like 80% of the max compared to the XPL-Hi/XPL-HD/SST20 versions of the D4S).

Yes, but I thought the current limit aims to bring the heat output of the Nichia down to the level of the non-Nichia version. But that does not appear to be the case. At least not on my D4SV2s. My D4SV2 Nichia runs much cooler than my D4SV2 XPL-HI, unlike my D4V2 Nichia, which runs as hot as my D4V2 XPL-HI.

I would call this a win:

Very nice! A 5°C overshoot is completely acceptable considering the thermal sensor is not on the same PCB as the LEDs are.

Little config upgrade for the D4SV2:

I don’t really understand the bump at ~ 13 seconds. Must have to do with the way the ramp table is setup on this light.

I ask for help. I did not find how to return to the factory settings. Now it works like this .- When I press the button, I turn it on and off and there is the possibility of increasing the brightness. I can’t check the charge level (3 clicks), I can’t turn on additional color diodes (7 clicks). I ask for help
P.S. He removed the back cover, but nothing has changed.

Factory Reset: Loosen tailcap, Hold button, Tighten tailcap, Hold 3 seconds

Many thanks for the help. I would be very grateful if you could help in setting the strobe (brightness) and changing the color of additional color diodes. Now it’s green. Modes change 7 clicks. But I can’t adjust a different color. And I can’t adjust the maximum brightness of the strob.

To change the aux LED brightness level / mode:

In “off” mode: Click 7 times.
In “lockout” mode: Click 3 times.

To change the aux LED color:

In “off” mode: Click 7 times, and hold the last click until the desired color is reached.
In “lockout” mode: Click 3 times, and hold the last click until the desired color is reached.

I apologize. When you click 7 times and hold on 7 clicks, nothing happens. Diodes do not turn on