lithium battery

I've only used Ni-cad batteries but would like to start using lithium batteries considering they are much better. As long as they are AA's. Anyone see a problem with that Yhanks

My department just purchased some TK 2160's with the 7.4 VDC, 1950mAh, 14.43Wh batteries. I haven't used these before and am wondering the best way to extend their life? Do battery conditioner units help extend the life of Li-Ion batteries as much as with non-Li-Ions? Does Kenwood make a...