Run-Time Plot - UBH-KL1 1x123

[Roy]

This runtime plot is for a Universal Battery Holder (UBH) with a KL-1 head using 1x123 Sure Fire Li Battery.

Equipment used is a photocell and a Radio Shack 22-805 multimeter with a PC interface that is using ScopeView software (V 1.08)

The vertical axis is in ma and the horizontal axis is 30 minutes per division.

Be aware that your actual battery milage may vary from that indicated by this runtime plot.

 

[Klaus]

Roy,

do you have any of those famous "A" Sanyo NiMh cells for comparison ?

TIA

Klaus

 

[Roy]

Klaus....no I don't. I wish I did.

 

[lemlux]

Klaus:

You sure are trying to make me feel guilty for not doing a run-time test for you. (Now I know how Doug Speck feels)

My 19-year old daughter had her gall bladder removed today so I have had other things on my mind.

(Operation successful with no complications)

A likely problem with the meaningfulness of a run time test is that the Sanyo 2450 min 2700 typical NiMH A cells from the packs we have seem to have varying capacities based on DB useage.

Also, I have no measurement devices and I'd only be able to provide subjective comment on when I first noticed a perceptible relative dimming to my KL3 or ARC 500 mA Hybrids.

 

[Roy]

What you're seeing on the plot is the ma generated by the photocell from the light striking the photocell.

 

[JollyRoger]

If you guys want, I could do a runtime with the KL1 and two nimh "A" cells (yes, the nice 2700mah Sanyo's)....using a "UBH," but I don't have a light meter....I suppose I could try to do the test when I'm over at McGizmo's to use his light meter?
Anyways, only if someone wants to see this done...

 

[Klaus]

Yes please go for it - Lemlux´ results indicate like a 3 + hour runtime to moonmode which is quite nice - and would also correlate OK with Brocks´ 1800ma NiMh testing of approx 2 + hours.

Klaus

 

[LightBright]

D'OH!!! I guess I missed that first sentence, "Equipment used is a photocell and a Radio Shack 22-805 multimeter"....

Here's my assistant trying to knock some sense into me

 

[lemlux]

Klaus:

Thanks for summarizing my input

. I wasn't sure it was precise enough to be worth-while.

...............

I remembered to look at my KL1 driven by 2 @ A NiMHs after 3 hours and 37 minutes of run time on fresh Sanyo A NiMHs.

The light was reasonably bright and very useable but was clearly less bright then than my ARC LS 500 mA Hybrid. I guess the brightness approximates that of my BB500's, but don't have them here with me for comparison.

Thus, the light had dropped into a moon mode.

2@ 123's with 9.0 WH compare to 2 NiMHs with between 5.9 WH and 6.5WH.

Given the low starting voltage of 2.5 V, I suspect that the brightness vs. time curve looks more extended like the 1 * 123 curve than like the more abrupt 2 * 123 curve.

Sorry I can't be more precise.

 

[LightBright]

I'm not sure I understand what's going on with the current (ma) readings. It doesn't make sense that the KL1 is only drawing 1.46 ma. max, nor does 1.46 AMPS make sense either! Luxeons draw from 50 to 1000 ma (1 amp, kinda like Mr Bulk's mods), and then there's some power losses in the converter board, so I would expect to see about 500-600 ma being drawn. I must be missing something here...

 

[Roy]