Alright, thanks for the input. I wasn’t sure, never had any of those cells with the USB.
I’m currently shopping for a new (lightweight) backpacking flashlight and I think I’ll bite the bullet on the High CRI m150.
Might just want to get a good hi-cap 14500 sans charger, and stick with one of these
instead.
I’ve got a bunch of them, grabbed in bulk when they went on sale, and I always keep one in my bag, etc., when I’m not going to be near a charger but still have access to usb.
I keep all my Big Chargers in their respective boxes, and hate “unpacking” one just to charge one cell, so I usually just slap one of these on the cell and let it go.
Or if it’s an 18650, stick it in my MH20 and let the light charge it, then swap back.
Nice thing about the Folomovs (and similar/lookalike/workalike) chargers is that they can handle everything from a 14500 to 26650, and if you stick one on a current-starved usb socket (older laptop, etc.), will naturally limit the current to smaller cells like 14500s. (But they’re already limited to 1A charging current, so won’t stress out 14500s too much.)
If I recall correctly, when I used the built-in charger of this flashlight and then measured the final result, I guess it was not at the 4.20V.
It was around 4.11V or 4.12V. So it doesn’t stress the cell that much.
Actually, using a protected, or even unprotected, 1000mAh 14500 battery in this flashlight might be a nice solution for long runtimes (instead of very “high” outputs).
I can trade my power banks (which are old and only output max 1A anyway) for a setup based on that little charger, 18650 cells and maybe an extra 14500 cell (1000mAh like suggested).
Will result in lower total weight, bigger total charge capacity, and added versatility.