I keep reading that a light can be locked out by unscrewing the tailcap slightly because the threads are anodized.
I understand that the cell circuit for the flashlight is completed when the tailcap is fully tightened, thereby making electrical contact with the un-anodized end of the tube and un-anodized retaining ring (or whatever) of the inner tailcap.
This implies that anodization is an insulator?
If that's the case, how durable is the anodization?
That is, how much wear can anodized threads tolerate before the anodization wears away to the point that continuity is created just through the worn threads?
How rapidly does the wear progress on properly lubed threads?
This has been discussed a while ago. If I recall right the cause might be the FETs gate still loaded after disconnecting the cell with a short tap. If this is true a hardware modification is required to solve the issue - which has been done in newer BLF driver designs.
A lighted tailcap is on when the flashlight is off. As soon as you turn the flashlight on, the LEDs in the tailcap turn off. When you twist the flashlight tail out, the lighted tailcap turns off, and accordingly the flashlight can no longer turn on. The lighted tailcap is on the same circuit as the flashlight.
If I want to eliminate a thermistor, can I just connect the wires going to each end and bypass it with no resistance? I’m switching leds in my TM16GT from XPL HI to XHP35 HI. Not sure if eliminating the thermistor is such a good idea, but want to keep my options open. Since I’m going from a quad MCPCB to 4 individuals, I’d have to find a way to mount the thermistor. I could probably file down an old XPE star and mount it on there, then glue it down.
I would say yes they do. You’ll get more from a non-protected cell. I’ve never had this happen myself, but I believe you can also trip the protection circuit with a FET or direct drive light. You can remove the circuit, but just be careful…all that stuff is connected really close, so it’s easy to short out with wire cutters or whatever tools you are using. You’ll most likely need to rewrap the cell when done.