The anti-matter containment pods have very rarely breached, no matter how dead a ship is. In Disaster, for example, the antimatter containment field (singular) was damaged, but not that the power wasn't available, just that it couldn't be used properly.
At other times when power has been taken away, at least mostly (Starship mine for example), there's been no mention of the antimatter pods.
It wouldn't surprise if the pods have their own internal power supply -- perhaps even a small matter/antimatter generator -- to keep the pods working. We've seen them ejected into space, and according to Memory Alpha "VOY: Resolutions" confirms they're self contained.
Not only that, but it seems hard to "uncontain them", deliberatly. You can't telnet in and shut down the containment field, otherwise Tuvok wouldn't have wasted a torpedo do destroy one.
As for how small systems get powered -- we've seen plenty of evidence of explosive consoles across all ships, one does have to wonder why bridge consoles aren't powered by a 50V dc circuit and some relays. That said, some systems like replicators use shocking amounts of power.
I guess I always assumed that normal systems were powered from a battery-backed "alternator", which itself was powered by impulse or warp engines.
At other times when power has been taken away, at least mostly (Starship mine for example), there's been no mention of the antimatter pods.
It wouldn't surprise if the pods have their own internal power supply -- perhaps even a small matter/antimatter generator -- to keep the pods working. We've seen them ejected into space, and according to Memory Alpha "VOY: Resolutions" confirms they're self contained.
Not only that, but it seems hard to "uncontain them", deliberatly. You can't telnet in and shut down the containment field, otherwise Tuvok wouldn't have wasted a torpedo do destroy one.
As for how small systems get powered -- we've seen plenty of evidence of explosive consoles across all ships, one does have to wonder why bridge consoles aren't powered by a 50V dc circuit and some relays. That said, some systems like replicators use shocking amounts of power.
I guess I always assumed that normal systems were powered from a battery-backed "alternator", which itself was powered by impulse or warp engines.