Don't the simple chargers from Cottonpickers charge at 700mA? That's way too high for the smaller cells. I don't have one of those in front of me, gave the ones away that I had...My 80 yr old mom has one with a 1200 lumen 18650 light in her purse. lol
I now use the Octo from Cottonpickers, it has 50ma, 100ma, 200ma, 300ma, 400ma, 500ma, 600ma and 780ma options.
The Efest IMR10440 does 3.34A in my Texas Poker, good for 921 lumens through the de-domed XP-L V5 2A emitter. I carry spares for my 2 HF's on my keychain as well, even though they are set up with the 10250 Nuke...the carrier on my keychain that houses one of my spare Efest cells is actually the HF 10440 tube.
In my HF's, the Efest comes very close to making the same power as the Nukes. And of course, has much more capacity.
Hi Dale,
The SingleMode chargers are customized by CottonPickers.
The ones I offer are typically 80mA - 90mA (possibly depending on the resistors CottonPickers has available).
Of late, they all seem to have been 90mA.
Might be wrong, but I thought they were putting out 90ma.
Hi Kaichu,
Spot on actually (though their may be other versions in the wild).
Updates...
The MBI Charger is coming along well.
Awaiting the proto's of the unit (electronics are all fairly well tested now).
Had to make a small adaptor PCB to hold the USB part in the body but that's ready now so shouldn't be too long before I can share the first proto.
The body is a little thicker than planned, mainly to enable the extendable telescopic function
... default size is for a 10250 but can be quickly extended to 10440 size.
Based on Torpedo X feedback, I've redesigned the telescopic part so that
1) It locks into short mode nicely
2) Its quick to extend it (just a few turns rather than tens of turns)
3) No risk of pulling it out of the tube entirely
That required an extra 2mm though.
Its looking to be around 6cm in total length and 1.6cm in diameter.
I've also made 2 additional designs....
One is ultra compact, size of an HF-R but means you'd need to carry around an extra tube to use with 10440.
The other is roughly the size of a USB stick with slide out, extending bottom so you could charge 16340/14500 (and maybe 18650 too) ....it can even have voltage display all in a smaller than gum-stick size.
I thought carefully about the use-case.
For me, I typically want to have a charger in my bag, car or somewhere and possibly on a keychain but that's the rare exception. When I travel, I like to be able to carry a spare battery safely too and so the first design does all those nicely.
Didn't want to spend forever though on working on too many versions at once as that would extend the timeline by months (speaking from experience) but once the first charger is born, I'll definitely looks at offering the others too.
Awaiting HFTiny proto's from two different facilities...
Want to compare the machining quality.
Mostly set on the new HF/HF-R head design and I've ordered samples.
The critical factor is going to be that it can handle the heat transfer adequately but as long as that part is good, its going to be much easier to customize the LED choice and even buy some spare LED engines so you can swap those out yourself too.
Basically a copper drop-in for the HF/HF-Rs.
I've been designing like crazy but as the product line grows, my time seems to evaporate logarithmically.
Each design takes a ton of back and forth mails to very custom components, parts, machining specs.
Then prototypes, then feedback....
I have a long long list of new things to do/make but wow, I'm finding time to be a huge constraint and nothing seems to move quickly enough.
I've found a new machining facility that looks very promising (after communicating with a bunch in the last couple of weeks) and have some samples underway to confirm quality.
For now, that seems to be the slowest part of things.
I'm still very fortunate to be able to call this my hobby and even more fortunate to have so much support from everyone here (and yes that's well wishing lurkers too).
It means I have no bosses to answer to, no budgets to meet and no whips to avoid.
Its all purely for fun and pleasure. I can be a little slow on days my inbox gets flooded but I still enjoy answering every single question and in case I've missed any mails, do feel welcome to remind me (Gmail is great at drowning/hiding emails when my inbox has a crazy day).
I have no intention of making things for the purpose of just selling something. No, no, no...
Its got to be something I'd want to personally use and at the very least meet my need better than anything else I can readily buy. That's also a cause of slowness....
Because I want it to be perfect, I end up tweaking, re-tweaking, improving, re-designing...
I just have to remind myself to pause the development when something is already working great, and share a version with you all, before I tweak it further.
That was a bit of a long one...
Working really hard on being able to share something new in-time for christmas.
Tgwnn
..posted this several hours ago only to see its not been posted...
at least it didn't vanish
