Nichia NDB7875 445nm 9mm

I got myself a Nichia NDB7875 445nm 9mm,set in a 12mm copper module with 405-G-2 glass lens. It's driven with a X-drive V6 buck set to 1.8A. Powered by 2x Tenergy 18650 3.7v 2600mAh Li-ion with protective PCB. The host is a Sky-Ray SR5. This is my 1st DIY laser,I didn't know the V6 driver needed at least 5v to kick in. Right now,I have 2x18650 taped together and ordered 4 18350 with a charger. I should be able to fit 2x18350 into this small host withouth use of the greatest multitool ever made,tape. The diode is rated 2.5-3W output 2amp max

As it is,it lights up great. Having a fun time burning stuff :shhh: :evil: :eg: and lighting up at night time . My question would be,is there anything else I can do to make the beams stronger? ex;burning faster,longer range,brighter

What other host can I use with a big heat sink and will fit 3x18650 or 4x18350,since I already ordered those.

I'm a noob and ANY kind of input would be appreciated :thanks:

Hello,
I'm New to this too, I used a 9mm Nichia diode driven by a 1.8A adjustable driver, copper module & heatsink, it only needs 1x 18650 to power it, on first attempt I used 2x 16340 which killed the diode in seconds, oops,
On the second diode I accidentally got some heatsink paste on the optics, so in a 'kill or cure' frame of mind, I carefully cut off the front if the diode with a dremmel, making it an open can diode, now runs brighter & burns better than before, I would not recommend doing this unless, like mine, it was ruined anyway.

The x-drive can run with 2 or 3 3.7v batteries with no problem. If you have questions send you a PM to lazeerer or DTR. Both can clarify 100% your question.
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Turn up the current! Adding more batteries would only increase runtime with the buck driver and I dont think you can go past 4 cells.

Can drivers be run in tandem & to what advantage?

You can sometimes run multiple drivers in parallel in order to supply more current where one driver would be limited.

SerpantSlayer said:

Turn up the current! Adding more batteries would only increase runtime with the buck driver and I dont think you can go past 4 cells.

Click to expand...

Amen. If you want more output, Adding more batteries won't do anything.. I wouldn't go beyond 2, Maybe 2.1 Amps.

I made a build similar to this combination. 2.1V7mini with a9mm using 3x18650 in serial but was too much juice(shutoff@2-3mins) Had to bypass one battery. Runs like three times longer now.