Well, here is what 3G^3 has to say about batteries at our TL (8). One Watt is
one Joule per second, so 1 Wh is 3.6 kJ and 1 MWh is 3.6 GJ.
Type Cap Mass
AA Cz 5kJ 19g
AA Al 9.6kJ 24g
AA Li 10.5kJ 14g
AA Nc 3kJ 22g
C Cz 16kJ 53g
C Al 25kJ 65g
C Li 54kJ 47g
C Nc 10kJ 75g
D Cz 40kJ 106g
D Al 62.8kJ 135g
D Nc 19kJ 141g
9v Cz 13.8kJ 38g
9v Al 17.8kJ 47g
9v Nc 16.2kJ 54g
12v La 1MJ 8.6kg
Nc NiCad
Al Alkaline
Cz Carbon-zink
Li Lithium
La Lead-acid
So you see that to get 1MWh, rechargable, we'd need 30 tons of car batteries
(the volume would probably be quite small, though) and I think that this is
the kind of batteries that subs use.
I guess that the figures for all the new funny batteries (Sulfur-?) are much
better than those above.
- -bertil-
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