Powerful Invisible 235mW NIR CD-RW Laser, Portable and Rechargeable Setup, Burning Tricks + Testing

I converted one of my 780nm CD-RW lasers into a DC-DC configuration. The results are quite stunning and is undoubtedly one of my strongest infrared lasers to date. The driver is a RC-type circuit designed to operate as a PWM constant current regulator for supplying the laser diode. I'm using a 2200mAh lithium battery as the current source. As for the laser module, it's aluminum and 12x45mm in diameter.
Warning: infrared laser technology can be dangerous to handle, do not attempt what you see in this video!
Relevant information: en.wikipedia.org/wiki/RC_circuit
Technical datasheets: pdf1.alldatasheet.com/datashe...
www.digikey.com/htmldatasheet...