I’d place a drip guard over the opener. Angle it so any drips from above will drain off the edges. Water management in situations like this is all about grading and redirecting the flow away from sensitive areas/things.
Separately, you may have issues over the long term with the opener due...
You are road tripping from where to where? Perhaps we can look at which stations are available. I've had a few issues with individual EA units, but never had a complete failure of all units.
That said, I'd still rather show up with higher charge state, and have a follow-on EA station as a...