A work colleague, fully aware of my skills with building ridiculous flash lights, asked me if I could do something with his 2xAA mini-mag. Having never even held one let alone modified one I jumped at the chance. I want to go all out and have settled on a triple XP-G mod like here. I'm going to copy that build pretty much exactly, starting with powering the emitters in parallel using this driver. My question however is how much current the driver is pulling from the cells.
Considering I plan to use 2 series connected protected 14500 cells the current draw can't be very high. Am I right in reading the table provided on the drivers sale page that states that with 7.2V input, the driver will only draw 0.17A, 0.85A and 1.6A from the cells to provide it's 0.25A, 1.38A and 2.8A output current? 7.2V in is a lot when you consider I only need about 3.15V across each emitter. Being that that are in parallel we're looking at 1W, 5.5W and 11.3W of heat for each drive level! That's a lot of heat in such a small package...
Is my maths correct? Does the driver function as I expect?
I can't really think of any other driver to use as the 14500 cells are pretty limiting. Any suggestions!?