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Old 03-06-2014, 08:26 PM #49
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Default Re: Lasever 473nm handheld stopped working

They did not say what was wrong with it. I would post pics if I had some time; college, homework, and work are taking up what seems like all of my time.


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Old 06-04-2014, 08:33 AM #50
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Default Re: Lasever 473nm handheld stopped working

Maybe this is a bit of a necropost, but I think a laser being killed by a "backwards battery" is just piss-poor design on the part of the manufacturer. I would go so far as to call it a defective or negligent design, due to lacking a basic protection component, or failing to anticipate basic user error, or both.

They've never heard of a blocking diode? Really?

They've never heard of somebody accidentally installing a battery backwards? Really???

BULL. Lack of reverse protection is bad design, period.

Even my cheap, 15-dollar Ebay lasers have reverse polarity protection. A company selling these for 100's of dollars a pop has no excuse. Obviously the company is penny-pinching and corner-cutting, in omitting such a basic protection feature from such an expensive device. If I spent hundreds on a laser and found out it could be killed by something as idiotic as a backwards battery, I would probably not do business with that manufacturer again.

Just my thoughts; if these lasers really do lack reverse protection then that is a shame, and the people who bought them deserved better for what they paid.
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Old 06-04-2014, 04:42 PM #51
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Default Re: Lasever 473nm handheld stopped working

Dunno what they do inside their hosts; but in the bare module I ordered from them long ago it did have a diode attached to the back end of the module... which how I understand it, that's to prevent a backwards battery
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Old 06-04-2014, 05:45 PM #52
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Default Re: Lasever 473nm handheld stopped working

You sure its a diode and not a fuse?
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Old 06-04-2014, 06:03 PM #53
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Default Re: Lasever 473nm handheld stopped working

When I looked at it, every aspect of it reminded me of a diode... I won't say I'm 100% certain, but the [ |] design usually means diode... right?

I'm remembering those glass/orange diodes...

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Last edited by ZRaffleticket; 06-04-2014 at 06:03 PM.
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Old 06-05-2014, 09:45 PM #54
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Default Re: Lasever 473nm handheld stopped working

i remember someone saying its a fuse...Who knows
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Old 06-15-2014, 05:37 AM #55
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Default Re: Lasever 473nm handheld stopped working

its a Zener diode which is acting as a fuse/ limiter. if it exceeds the ratings it'll pop. It bridges the +/- inputs on the back of the module. if you put the battery in backwards it'll pop the zener.

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