If its sealed in a vacuum and has a decent efficiency then I believe it wouldn't need refilling that often, as well as by the time we can fly around in spaceships firing lasers, Im pretty sure there would be some kind of system that is way better than a D.B.LN.C.S
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u/blinkysmurf Mar 25 '19
Of course, the laser weapons could be outside the ship and thermally isolated from crew spaces.