Other than the deathclaw in the beginning of the game, I didn’t use it in the 50 or so hours I played. But I did make the idiotic decision to park every power armor I found at my base, which was in the upper left corner of the map.
In retrospect, this is a really stupid decision because if I ever wanted to use power armor, I would have to go to the upper left corner of the map to go get it. If I wanted to store it in a spot, I should have made a base near the center of the map and kept them there.
I mean, just think about the amount of battery I wasted just taking them all to the upper left corner. And then the amount it would take to bring it to wherever I would need it. Sheesh. I think I had them all in a line, 8 or 9 power armors in a row. They looked pretty, though.