How can i check witch way the battery goes in.

[lazeerer]

Hi All,

Just got a Green laser into and ran into a little problem. I dont know witch way the battery goes in.:yabbem:

The laser has 2 springs one at the tail end and one inside the body. Do any of you know how i can test or figure out witch way to insert the battery in.?

I know green laser are usually case positive but the 2 springs are throwing me off.

Also another thing that is throwing me off is:

This is the laser i ordered it shows the battery positive going toward the head.
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But in there "100mW" Version it shows the positive going to the tail cap.
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Any Help would be much appreciated.:beer:

 

[anselm]

Hope that it has a diode to protect from reverse polarity then try it out either way! :crackup:
Seriously though, that IS confusing. Maybe you should contact Focal about it...

My gut tells me the big spring is for negative and the small spring for positive,
but I assume no responsibility should it fry.

 

[lazeerer]

Lucky i dint listen to your gut and fallowed my own that green laser are usual case positive. But thanks anyway.

So iam all set guys.

But i would still like to know if there is a way to test it if it can be done.?

 

[Flaminpyro]

Don't pay any attention to the springs or there size it has nothing to do with polarity !
Green lasers are made using a IR laser diode and as such they are ALL case positive :tinfoil:
sometimes the chinese don't pay attention to there advertizing so don't go by that either !

Peace All...

 

[Mohrenberg]

Don't pay any attention to the springs or there size it has nothing to do with polarity !
Green lasers are made using a IR laser diode and as such they are ALL case positive :tinfoil:
sometimes the chinese don't pay attention to there advertizing so don't go by that either !

Peace All...

What he said.
Just as all of our red diodes are case negative, the IR diodes are case positive.

 

[lazeerer]

Thanks Guys. For the clarification.

 

[mod101]

Don't pay any attention to the springs or there size it has nothing to do with polarity !
Green lasers are made using a IR laser diode and as such they are ALL case positive :tinfoil:
sometimes the chinese don't pay attention to there advertising so don't go by that either !

Peace All...

I have one of DNJY's 532 key chains that's a case negative. It looks like a case positive because the spring is on the inside like the newwish pens but it only works when the neg terminal is connected with the case.