Energy in an AA alkaline battery

Energy in an AA alkaline battery (9 kJ)

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Neat Ratios ...

Energy in an AA alkaline battery (9 kJ)

is 1/50 of Energy released by metabolising a 125 ml glass of wine (450 kJ)...more
is 1/5 of Energy released by burning 1g of petrol (gasoline) (45 kJ)...more
is 5 x Kinetic energy of M16 rifle bullet (1.8 kJ)...more
is 25 x Energy in an Olympic Javelin throw (360 J)...more

If this was a standard unit ...