Check my post above, Phillip. But even there I only found approval for the PA-18 and PA-19. (I had to look it up to find out what a PA-19 is.)
Bill
Thanks, Bill.
Somehow I didn't see that page when I looked. Anyhow, it's an interesting option, if such a battery is approved for our airplanes.
I wonder what some of our mechanics think about the prospects of getting a field approval for this type battery?