Thanks for the feedback, everyone.
I may have gone a little bit overboard on the equipment damage.
But I am still happy with the really long repair times, though. I feel this is totally realistic by having to abort back to base after taking very heavy, unrepairable (too long) damage. But what I will probably do is increase the armor ratings of all equipment again so they can withstand much more pounding before taking damage. I also plan on decreasing the compartment floatability numbers back down again, so the boat won't start sinking quite so soon after flooding starts. I can't really decrease repair times individually for batteries, because all repair times are connected. But I could decrease battery hitpoints so they would be destroyed quicker (which might be more realistic). Maybe I'll change the name back to LRT. Does everyone like the old name better?
Look for another updated version soon.