The battery on this light says 1600 mAh. But in the higher of its 2 modes it pulls 1000 lm. So I imagine it is rated at 5 or 10 A continuous? Is it even possible or is the capacity inflated?
You have to love the 2-modes only arrangement, and it looks about as throwy as IF19 (cd/lm ≈ 35) it just has the switch in the wrong place for me…
Nitecore don’t say what the LED is, but according to the datasheet for the Luminus SFT-40 one of those is around 1000lm at 3 amps. I’d hazard a guess given Nitecore’s professed usage that their LED will be somewhat similar but it is a guess.
They say it’s NiteLab UHi 20 LED. It is mentioned in the updated @LuxWad guide to LEDs but I don’t know if anybody characterised it yet.
I can’t find a datasheet for the UHi 20, but Luxwad’s guide that you linked seems to suggest that Nitelabs are actually producing these. In the absence of further information the only way to find out the current would be to buy one and measure the amps at the tail.
The battery is apparently the Nitecore branded NL1816R with build in charger and rated capacity of 5.76 Wh (!?). Can’t find the max draw for it.
Please don’t take this the wrong way, but why do you want to know? If it’s because you’re planning to buy the Nitecore battery separately I would advise not bothering, Nitecore don’t manufacture batteries, they re-wrap batteries they obtain from other manufacturers and sell them at significant mark-up. The one I personally unwrapped was a Sanyo, a good cell, but one that I could obtain for 1/3 of the price without the black and yellow wrapper. FWIW the MAH and max amp rating on the Nitecore wrapper was slightly under Sanyo’s specs, so if anything they were under-selling it.
If you’re considering buying the light you’ll get the battery anyway, based on my experience above it will be a good one, albeit not one they made. It will certainly be fit for purpose.
I’m not buying the light. I’m trying to standardize on 18350 batteries. In a recent discussion we discovered that the Vapcell M11v2 seems to be one of the best one going. I just looked at the Nitecore one and was surprised by its specks, especially that it has a built in charger.
I looked at Vapcell myself after reading your post and saw that they had a 1600 MAH rated one with a max draw of 3A. If the Uhi 20 is roughly equivalent to an SFT-40 (and this is conjecture) then Nitecore’s claims are plausible.
The Nitecore battery I unwrapped didn’t have built-in charging but it was so much longer than a standard 18650 none of my lights at the time would accept it.
Personally given the price of Nitecore’s batteries, I’d rather get two Vapcells even if they were potentially lower capacity.