DX 200mW Module (3V) Question

[weeba2kv]

I got the cheap ass 200mW 532nm Green Laser Module (3V 11.9mm) from deal extreme
But can i run it on a 18650 batt ?
mine gives out 3.8 volt source , connected to a 3 watt led it's 3,6 volt pulling 600 mA

cuz i don't wanna blow up the laser

 

[lasersbee]

Need a link to exactly what you bought...:thinking:
A fully charged 18650 3.6 volt battery will supply
4.2Volts... That is almost 50% higher than the
voltage that you should use...:undecided:

Jerry

 

[weeba2kv]

DealExtreme: $46.81 200mW 532nm Green Laser Module (3V 11.9mm) this 1


and i read
Hemlock_Mike's 200mw module was set by the factory at 590ma, and put out 143mw of green.

When he pot-modded that same unit, he got the most power at 610ma, and now it outputs 160mw of green.

And whatever you do, don't go past 3V!

mine pulls 540 mA @ 3 volt...

 

[Leodahsan]

I have one (15mw one) that runs nice on a LiFePO4 batt, @ 3.6 until 3v. The Q3 gets pretty hot (untouchable in 30 seconds CW), tho. I pot modded it to see how long it last, @ double power the crystal got damaged.

sorry for the bump

 

[HIMNL9]

That one looks like the ones sold in the past that was working with 3,6V ..... anyway, if you want to be totally sure, place a diode (or two in parallel, if one become too hot) in serie with the battery.

 

[Benm]

You'll have to tinker a bit, perhaps a schottkey diode would be about right at these currents.