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Sold/Expired Does anything go right !! 3x TYOL D2DIM

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cmacclel

Flashlight Enthusiast
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Jul 15, 2003
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Got everything together tonight to try out my new D2DIM powering 3x TYOL tars (parallel wired). "L Bin has a VF of 3.27-3.51. I wired up 2 LG2400 18650 cells in parallel for a 4.2v(fully charged) 4800mah pack. I connected the amp meter at full power and measured 1.7amps at just over 4 volts. I figured at this voltage and a pack this size I should have been feeding 1+ amps to each TYOL....................why am I only seeing 566ma to each star??

Other power source results

2 x 18650 Parallel 1.7amps
4x 2500Mah NiMH 2.6amps
3xCR123 Surefire 4amps
2xCR123 Surefire 2.1amps
2x18650 series 7.2v!! 5amps (shut her right down after I took the reading)


Any pointers?

Mac
 
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cmacclel

Flashlight Enthusiast
Joined
Jul 15, 2003
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5,018
Location
Sweden
Re: Does anything go right !! 3x TYOJ D2DIM

Oops posted in the wrong area.....Sorry. Moderator please delete I re-posted in the correct area.


Mac
 
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magic79

Enlightened
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Nov 7, 2005
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Re: Does anything go right !! 3x TYOJ D2DIM

In parallel, voltage is the same, but the current DIVIDES.

In series, voltage divides and current is the same.

Think of it like a water pipe. If you install a T, some will go one way and some the other.

With your LEDs in parallel, you will get about half the current to each one. If you want the full battery current to go through both LEDs, you will have to wire them in series.

If you have 1.7 Amps (no load) available, it is impossible to get 1+ amp in either leg (assuming that that the Vf is roughly the same).

...unless I am reading your question wrong.
 

Kiessling

Flashaholic
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Nov 26, 2002
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Old World
Re: Does anything go right !! 3x TYOJ D2DIM

Closed as duplicate. :) Please continue in the new thread.
bernie
 
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