Cant figure out battery orentation

[Alex2893]

Flashlight Style Focusable Laser Pointer - Laser Pointer Store

New designed torch style laser pointer. Can install star caps, expander. Also it can adjust the focus so you can burn items easily. Available on 520nm Green 500mW, 445nm Blue

www.laserpointerstore.com

Bought the green 500mw version and I received it today. No instructions on battery orientation. Even in the website. It has a spring in the tailcap and on the laser module. I emailed laserpointerstore the question but it could be days before I get a reply. Just wondering if anyone knows or has one?

Iv killed to many lasers in the past guessing incorrectly. Not doing that again

 

[Alex2893]

Never mind I got it. Neg toward tailcap.

 

[wolfram]

you should never guess. Be patient.....It pays off