laser pointer smells!

[Murdermajig]

I recently got a laser, It did not come with batteries, (I got this) so i went to my local batteries plus+ store to help me find the right battery on the website i bought it from, it says that i need 1x18650 batteries, but the person who worked there, used 2 123A batteries (brand new). He opened them and putting the batteries in the laser, the laser would not turn on. he flipped the sides and it turned on, but only a little bit. you could see a green light next to a red light. he then takes out the batteries and notices that it smells of burnt plastic, he checked the voltage of the batteries and supposedly my laser killed both of them. luckily, i did not have to pay for them, but now i am afraid that my laser is burnt. I have taken pictures of the laser module and dont know if anything happened.

here are the pics

 

[kevinmassey]

yup looks like he killed it. you gotta put em in the right way unless its got protection. and usually greens take batteries - side towards the module... but im not sure about that on all of them thats just with all the ones i have.

OH AND WHATEVER YOU DO NOT LOOK DIRECTLY INTO THE RED LIGHT!!!!!

 

[yobresal]

Sounds like you killed your diode. Sounds like there is no IR filter. Also sounds like there was a short somewhere. Chances are when he stuffed two CR123A batteries in there it caused the spring to bend inwards and short to the case. That would kill the batteries and make things burn. Sorry dude.

 

[Murdermajig]

So Im SOL?

 

[kevinmassey]

yes buy another! lol an put the batteries in the right way!

 

[Hemlock_Mike]

While you have it apart, connect it to your variable power supply set to 3 to 3.2 volts. Use correct polarity and measure the current draw. A shorted spring contact should not kill the module.

HMike

 

[rpaloalto]

Cr123 cells are 3.0v each 4.2v if they are rcr123.
A 18650 cell is 4.2v.
Either way he fried your laser with 6 to 8 volts!
That sucks sorry to hear that.
next time try and order from O-Like or Rayfoss. They usually include the correct battery with the laser. If not they will give it to you for only a few dollars more.

 

[Murdermajig]

While you have it apart, connect it to your variable power supply set to 3 to 3.2 volts. Use correct polarity and measure the current draw. A shorted spring contact should not kill the module.

HMike

Variable power supply? what is that, I'm a noob,

 

[Murdermajig]

Luckily I got another green laser that came 5 day earlier, But now i am a sad panda :cryyy:

 

[Meatball]

The battery man should've known better than to replace one 18650 with TWO lithium cells! I would be angry... but It sounds like an accident...

 

[DJNY]

Murdermajig :

luckily, i did not have to pay for them

I would definitly be adamant that such a guy replace my laser! You told him that it need 18650, it´s is his fault when he put other batteries in.

 

[Flaminpyro]

What do you suppose was the guys problem ? if he works in a store where they sell battries he shoud know what he is doing ! I think I would go back to the store and ask for the manager !

Peace out...

 

[HIMNL9]

Just as hypotesis .....

And, BTW, if someone burn my laser for his error, HE have to pay me, not the opposite

 

[Eudaimonium]

The battery man in the store apparently does not know what 18650 battery is! Now that is sad.
You should demand the value of your laser back, because he replaced one lithium cell with two lithium cells. Moron. Who gave him the job?!

I'm so sorry to hear about your laser, and I'd be pissed if someone do that to me.
BTW the batteries are not dead from using in a laser, so basically he said: they are dead you don't have to pay for them - just to soften you up!

 

[Nordhavn]

Sounds like Radio Shack to me!

Best thing to do is WALK AWAY when you ask for a part by NUMBER and they want to see YOUR goods. NEVER, EVER let them handle it. If they know what they're doing they'd tell you they don't have the cell in that size and may be able to tell you where to buy it.

 

[Cyparagon]

As said above, 7 volts into a laser meant for 3.5 is likely what killed it. I CAN tell you I'll never ask for assistance at a batteries plus outlet now that I know what kind of people work there. Kind of like radio shack.

"can I help you?"
"I'm looking for a 750KΩ 5W resistor"
"...what?"
"why do you work here if you don't know what a resistor is?"

I guess they've only been trained to pressure people into buying phones.

Two 123a in series are the same size as one 18650. It wouldn't have damaged the casing or springs.