[throwawayboise]

Is it 1:1? There are a lot more KWh in a tanker truckload of jet fuel than in the same volume of batteries.

[Tossrock]

Not that much more (theoretically) - Al-air batteries could reach up to ~8kWh/kg, which is in the same range as jet fuel's 12ish. Aluminum is also denser than jet fuel, so per unit volume it could be even closer.