The Tecnam P2008 has a 12v socket and it's a rare luxury in an otherwise awful plane. Most single engine piston aircraft don't have charging ports or 12v sockets.
I had one in my '67 182 and two in each of the 58P and then A36 that replaced it. I seem to recall them being present even in the Piper rental airplanes as well.
sokoloff|6 years ago