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Do these batteries destroy a laser?

mrnis

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Hello everyone, I would like to know, if 3.5V AAA batteries will destroy my 50mW green laser. In the original pack, there were two alcaline AAA 1.5V. Thakns
 





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it depends what driver board you have... some are 3.7-4.2v and some are 3v, but im sure you will be fine with 2 AAA.

stuart :)
 
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mrnis

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Thanks, there were only two not rechargeable batteries, so i want some rechargeable, but i just found 1.2V and 3.5V.. I bought this one 50mW zelen laserov ukazovtko (I am from the Czech rep., so sorry for czech language :-D)
 
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I would only use a 1.5V so you don't risk overpowering and damaging your laser. If alkaline batteries are going dead too fast on you, you can always try using lithium or rechargeable batteries. I use rechargeable's in my CNI 100mW pen and they last forever, they're marked at 1.2V but I haven't noticed any kind of power loss with my batteries.

What kind of 50mW is it? Where did you buy it from?
 

mrnis

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I am wondering, if i would use 1.2V batteries, if there will be some kind of power loss. I am asking, because i havne't found 1.5 batteries in our shops..

Sorry for my english :) As I said, I am from the Czech rep.
 
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Thanks, there were only two not rechargeable batteries, so i want some rechargeable, but i just found 1.2V and 3.5V.. I bought this one 50mW zelen laserov ukazovtko (I am from the Czech rep., so sorry for czech language :-D)

wow that is a rip off... 836Kč is equal to around 41.50$

swimminsurfer256 sells overspec 5mW green lasers that peak around 50mW for around 15$.

stuart :)
 

mrnis

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wow that is a rip off... 836Kč is equal to around 41.50$

swimminsurfer256 sells overspec 5mW green lasers that peak around 50mW for around 15$.

stuart :)

Noo :-D I bought that just for 18$ :) from the same guy, but not on e-shop :)
But it is true, that in Europe is everything very expensive so many people buy stuff from USA :)
 
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Hey, don't be sorry for not having English as your first language. It's not a big deal at all.
About using 1.2V batteries, I have used them for a while now and I haven't noticed any visible power drop in my CNI 100mW Pen. I don't have a Laser Power Meter (LPM) to test and see if there is a power drop but I cant tell any difference. My laser burns things just the same and just as fast with 1.2V as it will with 1.5V.

P.S.
When you recharge a 1.2V to full it maxes out at around 1.4V so they're about the same when its fully charged.
 

mrnis

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Thanks, thanks :) I will try 1.2V baterries :)

P.S: I am not sorry that english is not my first language, but for mistakes in sentences :-D
 
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Thanks, thanks :) I will try 1.2V baterries :)

P.S: I am not sorry that english is not my first language, but for mistakes in sentences :-D
No worries man! Yeah just give them a try, if you don't like them you can always return them. A lot of people here like the Sanyo Eneloop Rechargeable NiMH or Duracell rechargeable NiMH. I use Duracell myself and they work great for me. But just test some out and see if you like them.

Good Luck and Happy Lasering mrnis!
 

Morgan

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Hey mrnis,

Where in Czech republic are you? I've visited there. Lovely country; great, friendly people! Lots of slivovitz! Very drunk!!!

I went to a little village near Brno and had a brilliant time.

Ahh, happy days...

M
:)
 

mrnis

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Hey mrnis,

Where in Czech republic are you? I've visited there. Lovely country; great, friendly people! Lots of slivovitz! Very drunk!!!

I went to a little village near Brno and had a brilliant time.

Ahh, happy days...

M
:)
Well, I live exactly on the other side of the country :-D About 40 km north from Prague, little town Roudnice nad Labem.
 
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P.S.
When you recharge a 1.2V to full it maxes out at around 1.4V so they're about the same when its fully charged.

True, but the voltage drops to 1.2V as soon as there is a current draw.

They do make rechargeable 1.5V AAA's, but they are hard to find. I just use 10440's and a dummy. Using rechargable's will save lots of money in the long run. I've gone through 100 AAA's in one week!:yabbem:
Using 1.2V rechargeable's in a 532nm (green) is not a good idea, it can cause mode-hopping, power sags and divergence problems. Most company's diode lasers don't seem to have problems with it, just lower mW output.
 
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mrnis: Zdravím kapitáne, Ať to svítí! Tady Slaný....

There is slight risk by overpowering your laser. Small voltage difference can do high current difference (100% no problem) so it´s quite hazardous to push 0.7V more over to the laserdiode. The same way as underpowering - but only what you put in a risk is low power output.Usually no damage possible here.
 




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