Suppose that you want to take a long-term time-lapse of the passing the the seasons. The weather will most likely change over the period with periods of rain and snow.
We already have a question about long-term time-lapse in general with a very good answer but this is for taking a time-lapse from indoors, so no mention of weather issues.
Weatherproof cameras have a rubber seal around the battery compartment but A/C couplers usually somehow power the camera through the battery compartment which makes me wonder whether this compromises the weather-sealing?
So the questions is: How to power a camera long-term if it is subject to adverse weather? Do any particular cameras and couplers or A/C adapters preserve weather-sealing?