Run-Time Plot - AAA MiniMag / Lt-1

[Roy]

This runtime plot is for a 2xAAA MiniMag with a Lt-1 led conversion. Two AAA Ultra-Alkaline batteries were used.

Equipment used is a Extech Mdl 401021 Light Adapter into a Radio Shack 22-805 multimeter with a PC interface that is using ScopeView software (V 1.08).

The vertical axis in mVDC and is equivalent to one footcandle per mVDC. The horizontal axxis is 30 minutes per division.

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


The runtime to 50% maax brightness = 5 hours 45 minutes

 

[Roy]

Look here for details about this led converter. This is NOT a LS conversion but uses a small led. The one I received needed to have the two wire legs spread apart to get a tight fit in the switch.

This plot was done for those looking for a led mod for the 2xAAA MiniMag. It's not bright compaired to an LS conversion or even the stock incandescent bulb, but it will work well up close and/or in a dark room.

 

[Roy]

Here is a beam shot taken about 6 inches from the target.

 

[paulr]

I'm confused, is there such a thing as a 3AAA minimag? The ones I've seen all use two AAA's.

Is there a step-up converter on that little disc?

 

[Roy]

I wondered wher that third battery went! Your are right, only two AAA batteries. I've corected my boo boo.

 

[Roy]

Re: Run-Time Plot - AAA MiniMag / Lt-1/L92

Here is a runtime plot using the new L92 AAA Lithium batteries in a 2xAAA MiniMag. The runtime is 6 hours 24 minutes.

I quess I was expecting more from the L92s....I only got a 10% increase in runtime.....6hr 24 min with the L92 vs 5h 45m with alkalines.

 

[Doug S]

On their webpage that Roy linked they say:
Save Money – Go at least 15 hours between battery changes

Well that's right, of course, but I suspect that their copy writers hope that you jump to the carefully planned, incorrect assumption that the product actually emits light for 15 hours rather than 6 followed by 9 hours of darkness as Roy has demonstrated.

 

[NewBie]

Either that or since they mention AA on their site, and Roy was running on AAA (P92), perhaps they'd get to 15 hours on a AA (P91). With over 50% more capacity of a AA vs. AAA, and on top of that, the lower internal resistance of the cell, possibly they'd approach 15 hours.

Though, poking around, I did find a useful page on the Lithium P91 AA
http://data.energizer.com/batteryinfo/application_manuals/li-app_man_2004/l91_app_man.htm

 

[Doug S]

Newbie, good point! 15hr does seem plausible on an E91.

 

[Roy]

I have not tried the Lt-1 in a 2xAA light. The led in the Lt-1 is a 3mm and does not put out all that much light...IMHO...and I see it best used as a drop-in mod for the 2xAAA MiniMag

 

[voodoogreg]

I think terralux has one coming out soon.VDG

 

[nerdgineer]

Seems like you'd do a lot better putting those 2 L92's into a Nuwai .5W 2xAAA light. Costs less, 150 plus cD hot spot, bright spill (on mine, anyway), and 9+ hours according to your run time plot. Costs less, too.