2 Questions about batteries in laser

[zigzag123]

That's something I'd rather discuss in a PM.

Most like pointing to the sky at night with the nice colors and or burning things.
If you need to post in a PM then all I can think of is your using your lasers for no good??

 

[LEDbeam]

Most like pointing to the sky at night with the nice colors and or burning things.
If you need to post in a PM then all I can think of is your using your lasers for no good??

No, no. Nothing like that. Pointing at the sky at night, yes. But not doing bad things.
Trust me, the PM request would be to discuss things that would be best said privately. That was my reason for the request.

 

[loreadarkshade]

Hello everyone!

Running an underpowered battery will never damage the laser, but can damage the battery by over-driving it. As other members have said, keep a watchful eye on your battery temps.

I can sell copper heatsinks at increased cost, and do have them, but there are a few caveats with that.

1. A copper heatsink inside an aluminium heatsink inside a SS host will offer no advantage to a full aluminium build.
2. The threaded part doesn't sink the heat from the diode, the larger aluminium housing does as this is the point which has the most contact with the rear of the laser diode. You aren't supposed to cool laser diodes from the sides, but from the back face instead. Aluminium is plenty good of a conductor for this, because the bottleneck is actually the convection cooling of the host itself.
3. My tests show no real advantage from copper heatsinks, due to the reasons mentioned above. This is why I stopped spending extra money for copper, which ends up costing the customer in the end. The host itself is the limiting factor here (hence why the Cerberus V2 has large exterior fins to dissipate heat to the atmosphere faster via convection.)

If the host was full copper with large fins, or had active cooling, that would be a different story.

Finally, I offer lifetime warranty for any reason, no questions asked.

Jimmy Leveille
603 rue des Dominicains
Trois Rivieres G9A 3A5
Quebec Canada

Please use tracked shipping. Mark the package as "repair/warranty" with a declared value of 1$. Otherwise, there will be import fees and the package will be declined and returned to you.

The products will be sent back to you free of charge, repaired and refurbished.

For as long as I remain alive, I will honor this warranty, even if I go out of business. That's my goal at least.

 

[zigzag123]

No, no. Nothing like that. Pointing at the sky at night, yes. But not doing bad things.
Trust me, the PM request would be to discuss things that would be best said privately. That was my reason for the request.

I understand. If its to ask about the aluminum heat sinks I think everyone will say copper is better.
On lasers doing 200mW's or less using smaller aluminum should be just fine.

Of course it your right to privately talk to someone. For some reason though this forum doesn't have the PM function anymore.

 

[zigzag123]

Hello everyone!

Running an underpowered battery will never damage the laser, but can damage the battery by over-driving it. As other members have said, keep a watchful eye on your battery temps.

I can sell copper heatsinks at increased cost, and do have them, but there are a few caveats with that.

1. A copper heatsink inside an aluminium heatsink inside a SS host will offer no advantage to a full aluminium build.
2. The threaded part doesn't sink the heat from the diode, the larger aluminium housing does as this is the point which has the most contact with the rear of the laser diode. You aren't supposed to cool laser diodes from the sides, but from the back face instead. Aluminium is plenty good of a conductor for this, because the bottleneck is actually the convection cooling of the host itself.
3. My tests show no real advantage from copper heatsinks, due to the reasons mentioned above. This is why I stopped spending extra money for copper, which ends up costing the customer in the end. The host itself is the limiting factor here (hence why the Cerberus V2 has large exterior fins to dissipate heat to the atmosphere faster via convection.)

If the host was full copper with large fins, or had active cooling, that would be a different story.

Finally, I offer lifetime warranty for any reason, no questions asked.

Jimmy Leveille
603 rue des Dominicains
Trois Rivieres G9A 3A5
Quebec Canada

Please use tracked shipping. Mark the package as "repair/warranty" with a declared value of 1$. Otherwise, there will be import fees and the package will be declined and returned to you.

The products will be sent back to you free of charge, repaired and refurbished.

For as long as I remain alive, I will honor this warranty, even if I go out of business. That's my goal at least.

The only thing I can say is that copper heatsinks or copper modules get soaked with the heat of the diode and a SS host won't pull that heat out
That is why Lifetime17 used a copper sink pressed into a bigger aluminum sink as it pulled the heat from the copper.

You know this stuff. The only thing i'm really saying is to follow a shorter duty cycle on your C3 hosts..