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Go Back   Laser Pointer Forums - Discuss Laser Pointers > Lasers > Drivers, Test-load, Power Supply, & Batteries



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Old 03-08-2012, 09:48 PM #1
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Default 16340 battery question

Hey guys,

A quick question, i build a 16340 445nM and i have 8 ultrafire batts and one brandless battery so i am in kind of a dilemma..

Only the brandless and 1 of the 8 ultrafire batts work with the laser? Really weird i dont have a clue the 445 is running of 1 flexdrive i even put the current on the driver down to see is maybe a protection board from the batts kick in but still only those two work.. Also all contact points are good that is not the problem

If you have a clue tell me

Should i get some AW batteries?

Greetings,,


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Last edited by offroadfreak8582; 03-08-2012 at 09:49 PM.
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Old 03-08-2012, 10:06 PM #2
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Default Re: 16340 battery question

Did you measure the internal resistance of the batteries ? I will give an indication how good the batteries are.

How healthy are your batteries? (How to measure internal resistance)
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Last edited by Blord; 03-08-2012 at 10:07 PM.
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Old 03-08-2012, 10:13 PM #3
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Default Re: 16340 battery question

Quote:
Originally Posted by Blord View Post
Did you measure the internal resistance of the batteries ? I will give an indication how good the batteries are.

How healthy are your batteries? (How to measure internal resistance)
Nope didn't do that.. But there all new but maybe their quality is bad or something?

Would this problem be fixed with AW's? And what effect does internal resistance have on the driver?

Thanks blord!

Greetings,,
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Want to buy the best goggles for 405nM, 445nM AND infrared? !Click here!
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Old 03-08-2012, 10:19 PM #4
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Default Re: 16340 battery question

If the internal resistance is too high, the voltage of the battery will sag under load. So much that it failed to deliver the needed voltage to the driver.

Ultrafire batteries are "famous" for the bad quality. Some of them are even repacked USED batteries. Even you bought it new they aren't new in the factory.

I think the 16340 hasn't enough juice to power a 445nm with a Flexdrive.
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405nm 400mW S06J C6
445nm 3W Big Boy, 2.8W Dominator, 2.4W Steel Laser
450nm 240mW PL450 C6
473nm 100mW PGL-III-C-473
520nm 55mW Skylaser PL520
532nm 821mW Skylaser PL532, 133mW Jetlasers Ti-B
589nm 100mW PGL-III-C-589
635nm 70mW Sanyo SenTorch
638nm 175mW Ehgemus, 1W Rook
660nm 1216mW Skylaser PL660, 263mW LPC826 C6
685nm 33mW Fujitsu FLD6A2TK C6
780nm 150mW Dilda
808nm 640mW C6

I have copper 501B and Dominator lasers for sale !

Last edited by Blord; 03-08-2012 at 10:22 PM.
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