Yeah, that would be my guess too. The S43 on turbo draws a large amount of current. Around 10 amps or more? You really need an unprotected high-drain cell for proper performance.
Thanks all for your replies. I first thought about a S43 protection because i believed the protection circuit in the cell limit the power without cutting it but if it detect a dead short, it make sense. I don’t know if it’s possible with NarsilM 1.3 but i’ll try to disable turbo. Full power is enough for my use.
I like in this flashlight: wide flood beam, Neutral White, USB recharge, 18650 or 18350, side switch, the price and Narsil firmware (i don’t understand the user manual yet but seems very flexible)
Cons: switch very soft and sensitive, could be place deeper in the head to prevent unwanted activation.
Yeah, that’s a good point to make. If you’re carrying this in a bag or even a pocket where the switch might get pressed, either put it into lockout mode (4 clicks) or (better) just twist the tail cap a touch to cut all power.
This light gets really hot, really fast, on turbo. Even with the thermal step-down, it could cause a safety concern if accidentally turned on if you didn’t know.
…with a Protection circuit board added. Many PCBs can’t handle close to what this torch pulls… most of mine are limited to around 8A and cannot trigger turbo so it’s a good PCB for those who want one.
so i want to buy finally this one…great output,usb,cheap……which 18350 is recommended? or do we have anything better in this cathegory? rpice,size,lumens,usb?
question-the christmas coloured versions are also copper or just alluminium? i heard that the copper head is suitable for longer runtime on turbo…so i wonder what can be the turbo on the non copper versions.thanks a lot:)
Running on 4 to 5 it a nice walkabout light.
Copper head. or the Stainless, makes a nice fistful to “dissuade” anybody.
The short battery tube hasn’t much time running. the 18650 is much better.
I prefer ’em both to the S42-43.
It’s a niice light.
I decided to program the thermal controls to “off” on the S43. This means that you have to be very careful when running the light on high outputs, but it’s worth it IMO. I just don’t like how the built-in thermal controls ramp down so far, and well past the point where the light is no longer hot.
I’m okay with running the light hot when I do 500 lumens steady. It seems to be fine.
as i know,turbo is recommended max.to 45 sec or so……then is it really hot…but i want to reflow nichias with xpl hi,so who knows.maybe it will survive:)