Electrolysis of water

Hey /sci/,
Is carrying around a battery and a liter of water an alternative to carrying around a helium container?

A liter of water makes about 1200 liters of ideal H2 at STP.

>>7
It was the hull that caught fire in the first place, not the hydrogen. By the time the hull had disintegrated far enough for the hydrogen to mix with the oxygen in the atmosphere enough to also catch fire, the crash was inevitable anyway.
But yeah, everyone who stayed on the blimp as it went down survived.