LPC-826 power supply

[personx910]

I am planning to build lsr with lpc-826 diode with lm317 driver
what battery(batteries) I need to power it? (570mA)

 

[chipdouglas]

i think you need at least 7. make sure yo use good batteries.

 

[Toaster]

Need 7 what? Also, if this is like many of the other red diodes, direct driving with 2x1.5V batteries works as long as your diode is heatsinked. I have done his with 635, and 660 diodes and never had an issue. Cheers.

 

[chipdouglas]

lol i read it too quickly. i thought he asked for the voltage.

with lm317 use 2 3.7v lithium batteries.

 

[personx910]

with lm317 use 2 3.7v lithium batteries.
how many mAh?
and will it fit Hotlight host?

 

[chipdouglas]

3.7v batts come in many sizes. more common here are 10440=aaa 14500=aa and 18650= idk lol.


michael.

 

[personx910]

and wich can fit hotlight host?
and how many mAh batteries would it be , or there is not difference? ?

 

[Helios]

2 cr123s in series should work and fit any 18650 hosts like the hotlights

 

[rhd]

2x CR123 is kind of a pain to fit in hotlights.

Grab 2x 10440s. Then just solder a piece of wire across the third 10440 battery slot. Two of those batteries will give you enough voltage and enough current to power an LM317 based driver for a red diode.

Simple, more than capable, and leaves you lots of room in the pill to build the driver without needing to modify the hotlight.

 

[personx910]

thanks for the help

 

[personx910]

I have purchased all the parts for lm317 driver and New Focusing Laser Host for Laser Construction | eBay
Wich batteries Will give me with these 416mA?

 

[LuxorLasers147]

I have purchased all the parts for lm317 driver and New Focusing Laser Host for Laser Construction | eBay
Wich batteries Will give me with these 416mA?

$4.49 - TrustFire Protected 16340 3.6V 880mAh Lithium Batteries (2-Pack Grey) - Batteries

These will work fine!

 

[personx910]

Thank you

 

[personx910]

LuxorLasers747
that's cr123 and not cr2 : (

 

[personx910]

I found cr2 3.7v but I have one more problem because I'm nooob in electronics
How i can connect it to battery and clicky switch??

can i just wire + and - of driver and connect spring to it?

 

[chefla]

Do you plan on using the driver in a hotlight host? Hotlights usually don't have a clicky switch on the tail. In a hotlight you connect the (-) from your driver to a bare metal part of the host housing. The (+) is coming from the front metal tab of the switch. Somebody here on the forum made a nice guide about the hotlights with really nice pictures.