Lithium AAs cost several times as much as Alkalines. They also last several times longer, weigh next to nothing & are almost uneffected by cold which would completely kill standard batteries. I'm a photographer & my equipment eats batteries like there's no tommorow. I use rechargable ni-cads for economy but when it has to have juice lithium AA are incredible! I think that using lithiums in the 50hr Extreme should provide longer run times than Alkalines in the 120(?)hr Standard. Oh yea, green is the brightest, by 1/3 if I remember right. I think I'll go see if REI.com has them. If you want more info, I dug up this link [url]http://www.equipped.com/krill.htm[url]
"Know the stillness of freedom,
Where there is no more striving"
- The Dhamapadah
- Buddha 563-483 B.C.
Tony.
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