Measured current was 610mA, which should be 250+ lumens
Yes, I’ve actually left it on for an extended period of time - the battery was at 3.4V after 15 minutes runtime and about 1 minute to rebound before I checked it
No, this battery probably isn’t designed for a 10C discharge rate. No signs of puffing yet though.
No, you probably shouldn’t attempt this - at least, don’t tell your lawyer I said you should
Just wait for what’s coming next. I’m thinking square copper rod with cutouts to clear the contacts, Nichia 219C and a 5mm fresnel lens. Though maybe 5mm round would work better - I might be able to retain the water resistance.
I know Vinh sells those for $26 and I know it’s a 5 minute job if you’re practiced at it. I think the mod is worth doing, but not worth paying that for.
I’m seriously considering offering a more refined version of this for sale for $40ish. I’m definitely not as skilled and experienced at this stuff as Vinh, nor do I have a reputation that would let me charge a bunch for a trivial mod. Of course, a high-power LED, copper bar and a lens would make it a very non-trivial mod.