【convoy】H4 and B35AM options are updated

sorry for being off topic…. im looking to buy couple NCR18650BD (3200mAH) from Simon store and wanting to know if ithave circuit board protection ?

also the capacity is actually 3200mAH?

You can enable it - option 2 in config mode IIRC.

http://i.imgur.com/sNXV4tt.jpg

Although that probably should be rewritten, it’s more like 16 taps instead of 10 to get into config, at least that’s what I’ve found.

Nico, looks like that NCR is 10A continuous discharge; I don’t know of any protected batteries OTOH that do that much. Usually ~2C from memory.

Those AAA titanium lights look nice! I’m not a big fan of the keychain attachment sticking out like that, but it probably won’t stop me from getting one.

I love those Ti AAA lights!
Any specs and numbers?
ETA?

The NCR18650GA is rated for 3500mAh, 10A maximum discharge current. Keeppower and EagTac both do protected cells with those ratings, and they’re believed to be using the GA cell.

In my experience, Keeppower cells tend to be fat - mine don’t fit into all of my lights. EagTac cells are slimmer and fit all of the lights I’ve tried them in, although one or two were a tight fit - rotate the cell until it slides in type stuff.

The other side of that tradeoff is that the Keeppower cells are significantly cheaper.

Interesting, thanks :slight_smile: learn something new every day.

This is just a sample ,it will be stainless steel

you can order the flashlight and the battery, then close the payment page ,leave me a message ,i will caculate the amount and adjust it

it can be produced ,but few people need it

this is just host ,
I can design the corresponding driver

i have protected NCR18650BD, i will add it in my store soon

thats a nice looking host.

Yes this keychain attachment should be made differently, at best like the sofirn C01, at least like the jetbeam jet-u or DQG AAA (I don’t have much AAA flashlights to compare with).

Myself I prefer centrally placed attachment points and while I can’t say I like the current one, for me it’s better than C01 or Jet-µ or DQG AAA. But worse then DQG Fairy or Astrolux A01.

Simon.
I received your driver for “”M3”“:https://www.aliexpress.com/item/33021024834.html?spm=a2g0s.9042311.0.0.300c4c4dQrwyVb today and put it in the ”JKK70”:https://www.aliexpress.com/item/32945368027.html?spm=a2g0s.9042311.0.0.27424c4dfpUQLC with the xhp70.2.
Thermal protection works very fast. Too fast.
The flashlight is not even warm and after about 50 seconds the brightness decreases. It seems to me that you should increase the temperature protection.

With the exception of gun/combat lights, my perfect light would always start in low or moonlight, then ramp up and down. I suspect I’ll have to learn to modify and flash firmware to get this.

Yes, something is definitely weird. The M3 itself also not even warm when the temperature protection kicks in, but it almost burnt my hand when I took it apart and touched the driver retainer ring :open_mouth: At least it was very hot to touch.

The temp sensor obviously gets triggered by the hot driver. If you can add a copper or aluminum spacer with silicone sheets it should perform a lot better. Try and conduct as much heat as possible away from the driver into the host.

That seems to mean that the heatsinking or heat dissipation of the M3 driver/LED board to the flashlight body/host isn’t that good, and hopefully can be improved next time?

The M3 body is quite big so it should ideally be able to absorb a good amount of heat compared to other smaller XHP70.2-based flashlights.

It’s possible. But from my experience with boost drivers they all need some form of an extra thermal path to run at high currents for long periods. I’ve stripped a few boost driver lights and usually they have some thermally conductive paste that they put on the driver components.