This isn't really a huge issue, so if there's nothing that can be done, it won't be much of a problem.
I've created robot companions using Buildable Bots for Fallout 3. It's a mod that lets you create a robot (protectron, gutsy, sentry), but the mod doesn't make these companions essential. If they lose health, it's gone. If they die, they're gone. Well I set them essential, and they just go unconscious as they should. Problem is, they never get health back or start over. Their health is always just back at 1/320 or something close to that.
Anyway I can make them regen health over time?