Thats the one. My friend is a dealer for the batteries. Our local faa has never given us any trouble installing them in our Cessnas. I'd check with your local inspectors and see what they say. I've seen them installed in 120's, 140's 150's, 152's, 172's, 170's and even 180's and 185's. They work really well with the light weight starters. Combined weight savings of over 20 pounds. On the 150/150's it allows the battery to be placed back up on the fire wall where it belongs. So now the battery stays warm and does not suffer from all of the line loss due to the long leads of the tail mounted version. I've got approved 337's I can copy folks for reference if they want.
