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ArcticMyst Security by Avery

800mw GREEN 532nm Laser POINTER! $44.04

IsaacT

IsaacT

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Jaxz: if you want to throw 44 dollars away, I can PM you my Paypal info....believe me, anyone who has an ounce of common sense would not view this product as a viable option for a high powered green. No need to do a test since no one would consider it....save the money....or as I said I can forward you my PP Address ;).
 





Pontiacg5

Pontiacg5

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wannaburnstuff said:
The most current I have seen rechargeable AAA's rated for is 900mA. 900mA X 2 = 1.8A....so I don't know how much a 800mW portable green would require for the pump diode, but there it is, that is the highest current I think could come from 2 AAAs.....rechargeable though, cuz if it is non rechargeable it isn't worth it.
Click to expand...

No.

That rating is the capacity of a rechargeable battery, in this case 900mAh or milliamp hours. That battery should be able to put out 900milliamps for an hour or 450milliamps for two hours. Just because the battery is rated for 900mAh does not mean it will be able to put out a steady 900mA. Most rechargeables in my experiece do not push as much current as a standard alkaline battery.

AAA batteries are run in series in pen style hosts. They are run in series to double the voltage, but the maximum discharge rate is the same as both batteries. IE: two AAA batteries, each capable of a steady 400mA draw in series will give 3V at 400mA, no more. Rechargeable only run 1.2V so they will only run 400mA at 2.4V. A normal pen pointer will output less power on rechargeables (or not work at all) just because of the lower voltage.

Two AAAs in parallel would either double the capacity or double the maximum current draw. If you have the same two AAAs in parallel they will either provide 400mA at 1.5 volts twice as long or 800mA at 1.5v for the same period of time.

The fact remains, it's not happening. I honestly don't believe more than 125-150 of GREEN (no IR) is possible in a pen host. The OP and anyone buying the laser expecting more than 5mW is a gullible fool.
 
IsaacT

IsaacT

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Pontiacg5 said:
No.

That rating is the capacity of a rechargeable battery, in this case 900mAh or milliamp hours. That battery should be able to put out 900milliamps for an hour or 450milliamps for two hours. Just because the battery is rated for 900mAh does not mean it will be able to put out a steady 900mA. Most rechargeables in my experiece do not push as much current as a standard alkaline battery.

AAA batteries are run in series in pen style hosts. They are run in series to double the voltage, but the maximum discharge rate is the same as both batteries. IE: two AAA batteries, each capable of a steady 400mA draw in series will give 3V at 400mA, no more. Rechargeable only run 1.2V so they will only run 400mA at 2.4V. A normal pen pointer will output less power on rechargeables (or not work at all) just because of the lower voltage.

Two AAAs in parallel would either double the capacity or double the maximum current draw. If you have the same two AAAs in parallel they will either provide 400mA at 1.5 volts twice as long or 800mA at 1.5v for the same period of time.

The fact remains, it's not happening. I honestly don't believe more than 125-150 of GREEN (no IR) is possible in a pen host. The OP and anyone buying the laser expecting more than 5mW is a gullible fool.
Click to expand...

Thank you for that EXCELLENT explanation of batteries and how current works with them. I am no electrician and don't have a whole lot of knowledge on that kind of thing, so when I saw 900mAh I thought it would give out 900 milliamps and thats it....so could a battery like that put out 1800milliamps over the course of 30 minutes? 3200 over 15 minutes?

Thanks for the good info! :beer: +1

Peace,
Isaac
 
Pontiacg5

Pontiacg5

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wannaburnstuff said:
So could a battery like that put out 1800milliamps over the course of 30 minutes? 3200 over 15 minutes?
Click to expand...

In a perfect world it would, unfortunately batteries have internal resistance so they can only put out so much current before the internal resistance limits the current too much. Better batteries will push more current (E2 lithium and Duracell coppertops > $1 store knock off Duracell.)

I think a safe limit for AAA's is around 500mA or so, though I've never really tested any. I'm just guessing off of my results with two AAA's powering a 445. Could be more, could be less. Depends on the battery.
 
00Giorge

00Giorge

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badinstincts said:
Re:00Giorge

That's not true, don't act like a self proclaimed expert in lasers when u don't know jack.
If it's a 532nm diode 800mw is very possible. Perhaps even with an ir diode 800 could still be possible. So stop spreading misinformation!
Click to expand...
I obviously know more than you!
idiot.gif


And I do know Jack!
tumblr_lb01o6tn481qe0eclo1_r8_500.gif
 
sandidgepatrick

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yes save your money unless you just want a 800mW sticker....if it seems to good to be true it usually is.... listen to the vet...
 
IsaacT

IsaacT

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Again, there IS a choice "C" for your 44 dollars.....my paypal info isssss..... :p

PS-ill even get you an 800mW sticker if you so desire :crackup:
 
Grix

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And why the hell do you think it's a "manufacturer website". It even says in the logo they are a wholesale website.
 
chipdouglas

chipdouglas

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i'm just teasing you LoL. but seriously the < is just a marketing ploy. it gives them a way out if they wanted.

michael.
 
00Giorge

00Giorge

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LOL! My brain is a little scrambled today, had a meeting with my attorney and when I got home to get him the info he needed my laptop quit working. As you can tell I got it going but now my brain is total mush. I will never buy another Dell! I will get another HP, it lasted 4 years before having problems, my Dell is only 1 1/2 years old and has been repaired 4 times.
 
RA_pierce

RA_pierce

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00Giorge said:
You bought a pen that uses 2 AAAs batteries an it is 200mw?
Was this confirmed on an LPM?
Click to expand...

I have a 532nm pen using 2x 1.4V NiMH AAA batteries. Peak output power is 205mW with an IR filter. I aligned the optics and crystals myself.
200mW is possible.
For $43? Maybe not.
:whistle:
 
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