Yeah, I’m not suggesting it’s necessary, just providing input. I think it might be more relevant given a driver that couln’t use the super-low modes on the MCU or for a non LiIon battery. (AA Emergency light, for example).
That’s a super neat anecdote on pulling the cells!
BTW, I’ve been studying the FSM code for a potential MCU port, well done on the organization! I’m still picking up C syntax, but overall it’s very readable for me.
I wonder if there is a market for protected cells that only have LVP rather than LVP and over-current.
Oh yeah, it slipped my mind that USB is only 10 watt (2A@5v) at most. This would make it very slow if you were charging 3 or 4 batteries.
USB-C might be the better choice. A few flashlights already use this. It’s capable of 60W (3A@20v). So maybe the internal charge rates could be 1A to 1.5A per cell. That would greatly reduce charge time.
One problem I see with built in charging in general is that the Q8 can run on 1, 2, 3 or 4 cells. If the charging circuit delivers 4A@5v (1A for each of the 4 batteries) and you happen to be running only 1 battery in it, all 4A will go to the single cell and lead to disaster.
The jankiest Ukrainian? MCU in existence that they used in the MF02s. If I can find the time, it will be less of a “port” and more of a controlled demolition onto a new chip. Basically it would involve taking any of the references to atmel libraries plus any of the assumptions about timers and subbing in a compatibility library or something. I’ve posted a few findings in maukka’s MF02s review thread. Ultimately I don’t have a lot of hope, but it would be nice to do, as the driver is a quad channel boost driver running the XHP70.2 at 12v.
Actually USB Power Delivery (which uses Type C connector) allows for 100W, 20V 5A.
There are laptops (and adapters) on the market already which do (from memory) 95W.
Yeah, but I’m talking about the more common USB-C. 20-30 watts seems the most a charger would need.
I still don’t see it working well on a multi cell flashlight unless you were to limit it to 5 watts total. That’s 0.25A to each of 4 cells and a very slow charge. I think that’s the real issue.
Has any parallel battery light had a charger circuit built in? If so, I wonder how they dealt with this issue.
I remember Haikelite did a charger cap that went on a battery tube of 4 cells. It acted as a charger, power bank and mini flashlight. I never got any details on how it worked, though.
FWIW, the HI version should give a more consistent tint without the usual Cree rainbow. And if you want it less throwy, DC-Fix is cheap. Together, they should make for a very nice-looking beam.
I’m more interested in output levels. I’ll probably have the weakest output Q8 of anybody. 4000 lumen maybe. I want 6000, but no way with the HI version.
Nope. You know the big golden light in BLF’s front-page logo? It’s that light. An original Skyray King, modded with a BLF driver and some other things. Currently it has a prototype Q8 driver in it, and it’s what I used for part of FSM’s development.
Oooh I had completely forgotten about the original inspiration of the BLF Q8.
Very nice light BTW. Also, very smart idea to combine multi-tint/CCT LEDs. Maybe I should do that for my bathroom with some high CRI LEDs lol. The fluorescent lamp currently in makes everything look green.
Because of this, I feel like I look much worse during the evening than during the morning when there’s abundant sunlight.
Have you ever experimented with multi-tint high CRI LED strips setup BTW? I don’t know if it’s a false memory or not, but I have seen you write about it on BLF. Maybe I’m just hallucinating or something.