Surefire Titan A- battery choice

Just got a new Titan- any feedback on using eneloop pro AAA vs the regular eneloops? How about Energiser lithium vs alkalines? Differences in runtimes or lumen output?

I use regular eneloops in ma Titan-A and also Titan Plus. I onkly have one Eneloop pro cell that was shipped with my Titan Plus. At all I do not use alkalines. I had in the past lot of trouble with this cells in all types of devices, not only flashlights. I had a lot problems with fluid coming out of the cells and the mess was than inside the devices (remote controls, comuter mouse, flashlight) and I used Duracell Alkalines... but after that I'm done with this type of cells.
For long term storage and emergency lights I use Energizer Lithium Cells. But I do not use this cells in my Titan-A and Titan Plus since both are EDCs for me with no need for a long term storage of the light.

Surefire states that the Titan will run 13hours on a premium alkaline and 17hours on lithium.
No idea on high mode, but logic says it will run longer ehile regulated on the lithium, perhaps over an hour. Someobe did a runtime test on the included eneloop and it fell out of regulation after half an hour, IIRC


I use the included 750mAh eneloop on mine, but I may put a lithium as the light is purely a backup to my E1D.

I pretty much so quit using Alks in all my lights. I basically only use Lithiums or Eneloops. I have both Standard and Pros and other than longer run time, I don't see any difference. I also have not measured run times.

Thanks everyone,just picked up some energiser lithiums to start with.Was hoping someone had already ran some tests on the different batteries in this light.