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Old 03-14-2017, 10:42 PM #1
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Default 18650 or 2 RCR123A Batteries?

So i have a 2w 445nm M140 Module with an X-Drive preinstalled and a C6 Copper host, and i know i can run the laser off either a single 18650 or 2 RCR123A batteries.

I know using 2 RCR123A batts will output more volts than the single 18650, and i definitely want to use my laser to its fullest potential...

That being said..

I dont want to overpower it by any means.

Will a single 18650 at 4V be better than using 2 RCR123A at 3.7V each? I want my laser to be bright but i dont wanna burn it up.

Its my first laser build.


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Old 03-14-2017, 10:44 PM #2
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Default Re: 18650 or 2 RCR123A Batteries?

Didn't you ask this in another thread?
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Old 03-14-2017, 11:03 PM #3
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Default Re: 18650 or 2 RCR123A Batteries?

If you have the X-drive and not the X-boost then you can't use a single 18650 as the input voltage will be too low.
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Old 03-14-2017, 11:06 PM #4
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Default Re: 18650 or 2 RCR123A Batteries?

Quote:
Originally Posted by dden4012 View Post
Didn't you ask this in another thread?
No i asked about the driver. Thought i should make it a seperate thread in case anybody else needed to know, couldnt find anything on it.

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Old 03-14-2017, 11:07 PM #5
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Default Re: 18650 or 2 RCR123A Batteries?

Quote:
Originally Posted by diachi View Post
If you have the X-drive and not the X-boost then you can't use a single 18650 as the input voltage will be too low.
Thank you for letting me know. I actually wasnt aware the X-Drive couldnt be powered with a single 18650.
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Old 03-14-2017, 11:38 PM #6
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Default Re: 18650 or 2 RCR123A Batteries?

Quote:
Originally Posted by MotoMatt View Post
Thank you for letting me know. I actually wasnt aware the X-Drive couldnt be powered with a single 18650.
It can be, just not with that diode, the voltage required for the diode is too high. Minimum input is 6V with that one at normal currents.
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520nm | Laserlands 520 | 5mW | For Review Awaiting arrival
532nm | Gearbest 303 Pointer | 50mW Metered
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633nm | HeNe | 6mW
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Old 03-15-2017, 12:04 AM #7
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Default Re: 18650 or 2 RCR123A Batteries?

Take a look at the flexdrive if you want to run your m140 on one cell. If you don't have a test load you could also consider the nano drive.
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Old 03-15-2017, 03:44 AM #8
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Default Re: 18650 or 2 RCR123A Batteries?

Hi,
Instead of the 2-RCR123A cells try 2-18350's they will fit in that C6 host . I made a C6 with a custom copper sink and knob with an M140 set to 1.8A X Drive/G2 lens.
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18650 or 2 RCR123A Batteries?-img_2743.jpg   18650 or 2 RCR123A Batteries?-img_2746.jpg   18650 or 2 RCR123A Batteries?-img_2745.jpg   18650 or 2 RCR123A Batteries?-img_2742.jpg  
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Old 03-15-2017, 10:08 PM #9
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Default Re: 18650 or 2 RCR123A Batteries?

Quote:
Originally Posted by Lifetime17 View Post
Hi,
Instead of the 2-RCR123A cells try 2-18350's they will fit in that C6 host . I made a C6 with a custom copper sink and knob with an M140 set to 1.8A X Drive/G2 lens.
Sweet thanks ill give those a try
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Old 03-15-2017, 10:40 PM #10
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Default Re: 18650 or 2 RCR123A Batteries?

Hi MM,
No problem you will be happy with the results. If you want power output use a G2 and for divergence a nicer formed dot use a 3elemeent.

Rich
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