The Oly C5050 I use for underwater stuff uses 4-AA's. I run NiMH rechargeables, as Alkalines die too quickly (which gets rather expensive, not to mention really irritating.) You can still find them used on E-Bay and the like.
I think most point and shoots have gone towards proprietary Lithium Ion batteries, as the energy efficiency (power vs. space) is higher than most other battery types.
jky
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