These are some other projects I've worked on.
Variety of LEDs and batteries; the larger two have XM-Ls and 1300mah lipos, one has a XP-G and a 900mah lipo, one has four Nichia 5mm domed LEDs and the other smaller light with the aspheric has a strange Nichia domed 1 watt (or maybe it was 3 watts, can't remember exactly) LED. Both of the latter lights use a 300mah lipo. Note: forgot to put a picture of the four LED Nichia in the family photo but there is a shot of it charging up on the bottom of the list.
All these lights use the same controller set up that I used in the above round/reflector lights; an X Light Mirco controller driving a P channel MOSFET at various max currents, from 1400mah down to about 400mah, except for the light with the four Nichias, that light is driven directly by the controller output at around 80mah.
All but the smallest with the 4 Nichias use a shaved aspheric to focus the light rather than a reflector. With a non focus able aspheric, you really have to compromise with the beam pattern. I guess I would call it a narrow flood. I can post some beam shots if anyone is interested. Not a whole lot of throw but the XM-Ls put out an impressive, somewhat tight, wall of light.
All have built in battery chargers that use a USB Micro cable. The XM-Ls where the earlier builds and I used a red LED behind the lens to show charge status.
On the later builds I used the translucent button cap that came with the X Light Micro and an orange charge indicator under it.
Kind of hard to see but all of the lights have a blue beacon that lights up the switch cap and the lens to assist in locating them in the dark.