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I just realized this morning after about 3 days of owning this thing that I have negative divergence. Beam comes out about 2mm X 4mm, and comes to a pinpoint about 4-5 feet out. Burning at that spot is apocalyptic (output is a little over 1W to begin with). My initial divergence test the day I...

This may be a stupid question, but what is typical for a laser to do when the battery is low? I was playing around with my spartan when it suddenly went dark. Turned it off, then back on, came back, then after a few seconds went dark again. Do CR123A type batteries have high output for most of...