Run-Time Plot - Fire~Fly II-CR2

[Roy]

This runtime plot is for a Fire~Fly II with a CR2 Li battery. This Fire~Fly II uses a BB 650 Lux III module with a NX05 optic.

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 Vdc and is equivalent to 1Fc per mVdc at 1 foot. The horizontal axis is 15 minutres per division.

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

The runtime to 50% max brightness is 20 minutes.

Here is the runtime for the same Fire~Fly II except it is using a SureFire SF123A Li battery

Runtime to 50% max brightness = 58 minutes

 

[sithjedi333]

Thanks Roy, looks like I'll be sticking with the CR123

 

[Roy]

FYI....I ran the plot for the CR2 twice and got the same result both times.

 

[this_is_nascar]

This is using a NG500 with a DPower and Sanyo CR2.

 

[Roy]

The CR2 that I used was also a DPower! Anyone know what the capasity(sp) of a CR2 and the average 123 is?

 

[cy]

WOW huge runtime diff, with next gen 500!

 

[this_is_nascar]

I'm in the process of doing a test with the same configuration, using a SF123.

 

[this_is_nascar]

I know that size does matter, but for me, it doesn't look like the CR2 configuration of the FF-II is going to be anything I'm going to stick with for any length of time. I just don't feel the smaller size of the CR2 setup justifies the much DECREASED amount of runtime.

 

[Kiessling]

dito Ray ... for this sacrifice the size has to be much smaller, like a Larry Light CR2 II ... where the CR2 cell is the coolest choice /ubbthreads/images/graemlins/smile.gif
bernhard