Battery-powered deer?

During a visit to a nature reservation this afternoon, I found something quite unexpected:

What on earth is a charging station for electrical vehicles doing in the middle of nowhere? The deer tracks around it suggest the deer in the reservation are possibly fake and require recharging over night, once all the visitors have gone. I wonder if this applies to reindeer as well. That might explain Rudolph's red nose: it's actually a battery life indicator!