Cisco's Laser Pointer Mod
It's all in how you use it.

The new Laser Pointer mod made by Cisco himself. Compatible with both KR808 and 510 at purchase and running on a High Drain IMR 10440 350mAh 3.7v battery, this Laser Pointer mod offers big performance in a little package.

http://shop.nhaler.com/Ciscos-Laser-Pointer-Mod-ciscolaser.htm

People searching for precision instruments are constantly hit with laser light diodes that burn trash or malfunction long before the beam has to die.

I have one of the originals. Definitely a nostalgia item in my book.

I keep one hooked in my planner with a fresh 10440 in it for emergencies.