Kudos to Dave Etchells for posting an excellent (technical and logical) comparison of different brands of high capacity AA NiMH batteries. His comparison (although done outside of a digital camera) measured precisely the amount of power these batteries are able to store and return. "First, I was rather surprised that the Rayovac battery / charger combination did as well as it did. Besides their being a newcomer to the NiMH world, I'd seen rather disappointing results from other "name brand" batteries, namely the Energizer Accu Rechargeables."