> I went to the Duracell website (they're a popular brand of battery > in my country) and I still couldn't find out what the capacity was > of their AA and AAA batteries. Then you didn't look very hard. Capacity varies by battery chemistry and manufacturer model. Assuming Duracell's standard "alkaline" AA batteries... Duracell site -> technical/OEM -> Primary Systems -> Alkaline Manganese -> technical bulletins -> performance characteristics -> capacity ( http://www.duracell.com/oem/primary/alkaline/alkcapacity.asp ) OR Duracell site -> technical/OEM -> Product Data -> Alkaline Manganese MN1500 (AA) ( http://www.duracell.com/oem/Pdf/new/MN1500_US_CT.pdf ) Lee Jones -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist