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lol i'm a noob.. I think i got it now. But the voltage drops when i hold it is this ok?

I just measured the voltage... It was 7.1 something, then it dropped fast to 3.x 2.x When i touched it battery was VERY hot. I think the battery killed the laser

They will replace it with a new one. How can i prevent this from happening again? The seller says: "I guessed you used wrong battery or wrong direction" Should i buy a new battery?

I'll ask for a replace or refund... If the don't i just throw it away i guess. I'm not that techy with resistors and diodes etc.. :(

Explain Bad Example please.

So i just received my laser i bought on Ebay. Ebay link But when i charged the battery (16340) and installed it in the laser it quickly showed a green point but then instant the red IR thingy. (Don't worry i didn't put my eye on it) After a couple of times trying it started to get very hot and...

Focusable 50mW Green Laser Pointer with Safety Key Lock can burns matches. "Bought on Focusable 50mW Green Laser Pointer with Safety Key Lock can burns matches. "Bought on DealExtreme" http://youtu.be/q-rl1CE9n_M Price: $33.49 free shipping - 50mW Green Laser Module - Powered by 1 x 18650...

I bought this blue violet purple 5mw 405nm laser pointer from eBay for $5.60 (About €3,-). Without a magnifier it is just a cool laser pointer but with a magnifier it can burn matches and pop balloons check it out! http://www.youtube.com/watch?v=o_BP3paVC1Q...