I just changed the battery on my edc Micro Photon II, something do I have to do very seldom. I quickly remembered that, for this non-techie at least, isn't as straight forward as it seems. I couldn't remember the trick(s) so I googled and found this nice site. Given that ETS sells a version and many of us edc them, I thought I'd post the link FYI.

Here's the link to the Photon II battery replacement video on Youtube: http://www.youtube.com/watch?v=rIS5UQHU238

The link to Photon Light is http://blog.photonlight.com.

The link to their battery replacement videos is here: http://blog.photonlight.com/archive/category/battery-replacement-2