Emisar D4S review

There is now a stainless steel bezel for the D4S. It’s available as an add-on for the D4S entry on Hank’s site.

Today I tried to flash Anduril to D4S but failed for a while. As I was typing this cry for help I tried one last time and finally succeeded.
When I ran the flashing command the flashlight emitter leds began blinking rapidly. Was it supposed to do this?
I got to about 30% done and then got a bunch of

avrdude: error: wrong responds size
avrdude: error: usbasp_transmit:
avrdude: error: wrong responds size
avrdude: error: usbasp_transmit:
avrdude: error: wrong responds size
avrdude: error: usbasp_transmit:

Tried several times, double checked everything, pushed/moved connectors to get better connection. And when I was ready to give up - finally success!
Was it bad connection? Maybe flashing pins went in too deep and short circuited something?

Yes.

Yes, I’d say the tip wires touched something. Those long bare copper tips you have there can go in too deep. Better to leave on some insulation or use very short bare tips, so as to limit the depth to just enought to make contact and hold the wires in place.

Tip: I found it better to use longer Dupont connectors to give more flexibility to the cabling, and to tape the wires to the head to prevent unwanted movement during flashing.

Does anyone know of a good bike mount that will fit the D4S? also, anyone have a link to the Rampingios V3 hex file?

Had a play with the blinky modes last light and I really love lightening storm mode. Anduril is an outstanding bit of firmware.

The D4S v2 with the aux led option.

The flashing pads are now similar to that of D4v2.

Except there are now two vias, one at each end of the row of four pads. This is an improvement over the D4V2, and will help to locate the pogo pins with much less fiddling around for those with less than perfect eyesight.

Curious, what are the pros of pads vs vias? I liked vias as I could simply insert wire/cables into the holes. Now I need to buy a pogo pin adapter.

They are smaller and single sided. This makes the PCB layout easier and sometimes even possible.

I really hope the D4S brings a new option for 21700 cell tube

Why 21700? There are 26650’s that perform very close to a 30T at 50% higher capacity.

With most of the gadgets and accessories and tools I buy, I look for ones that have flexibility in mind, whether it’s in how many jobs it can do or if it can work or survive in a pinch with a different add-on. I like flashlights that can use a few different cells or combinations depending on what I have at hand. I think it’s a relatively common mindset.

My only issue with 26650 and 21700 compatability is the springs. Will a shorter cell rattle? Will a longer cell crush?

I am looking to order the D4SV2 above, but do not see it listed on the site… Is it not on the new site?

D4SV2 is not a separate item. Go to the D4S and under the UI selection you can select Anduril with the RGB Aux LEDs.

I must be dense… I see only the selection of one color of aux led.

no amber color?

because they are smaller and lighter, better for EDC while still having great capacity

The aux led is under the UI option as mentioned by wolfstyle

Nope, amber option is limited to single colour only

I’ll have to weigh some… the 21700’s are 5mm narrower but also 5mm longer so the size issue should very nearly be a wash…

Edit: An 4500mAh 26650 Golisi Gold is barely a half ounce heavier than a 3000mAh Samsung 30T, so I really can’t see weight being a problem. True, the 26650 is almost a quarter of an inch wider, but it’s also the same measure shorter. So again, the differences are so small as to be very nearly unrecognizable. If you are so close to failure at carrying weight that a mere 1/2 oz could make or break you, then the problems you face are much larger than which battery selection to choose.

I understand that carrying a wider light, even less than a quarter inch wider, in silk suit pants might well be problematic, but then, anything of any comparable size would also be an issue. At which point, pocket carry would have to be dismissed and a belt carrier figured out. This light offers unparalleled output for it’s size, and it does that by using a readily available 26650 format. Granted, the 21700 is making inroads towards popularity in Li-ion cell choices but still it’s availability is much more limited than the 26650.

A neck light may well be of consideration if carrying a flashlight is problematic. Output and run time will suffer, but then, that’s what compromise is made of…

E07 is more EDC friendly than D4S and they have the same head diameter

But apart from the size, I sold all my 26650 lights and cells, I’m only keeping the ones that also accept 21700, I’m done with having a lot of battery sizes