Hi,
we were in the Wilpena Pound CP 10 years ago, only stayed two nights.
We were having battery problems, needed power, but baulked at the cost of powered sites.
The staff were kind enough to suggest we park in the unpowered sites near the camp kitchen, and take the battery and charger in to the kitchen area for the night.
We did the Pound walk and climbed St Marys Peak, but found other camp areas further out more to our liking.
cheers