Batteries types and revies.



I tried to search this topic here but did not come up with anything so here it is. I'm undecided what batteries to use in the my flashlights. Up till now I was using regular alkaline ones, they work good, no complaints but...

I see they have energizer lithium, are they worth the expense?

I'm looking at the battery to have decent amount of power that will last longer than alkaline, also that they won't leak once they get older. I know there are rechargable ones on the market, which ones are the best?