Has sheet metal repairs riveted to bottom, at typical spots usually acid eaten......
All, thanks for the tips... Brian, I was thinking the same thing... the SS box looks appealing, but I can't see spending $1k on that.
My battery box has, and has had for many years, acid-etched holes on the bottom where the battery rests on the "dimples." This has been noted more than once by mechanics during annual, but thus far, they have allowed it to pass. A decade or more ago, I received in the mail, from Brian, a piece of the lid latching mechanism on my old battery box that had broken off that my mechanic was able to rivet onto the battery box and repair it. (Thanks again, Brian). My point is that these boxes are getting older and older, and the supply of used ones is getting less and less, and some day, if we want to continue flying our old birds, we may need to bite the bullet and spend 1.25 AMU or so and and buy a new Bogert battery box. (AC Spruce has them for $873
https://www.aircraftspruce.com/pages/ap/cessna_battery/batterybox11-13488.php).
I have in the past seen plastic aircraft battery boxes that look like they would work fine, and are probably less prone to corrosion, but they are not approved for our airplanes. (They are probably for Experimental aircraft).
Same old story. A part that is cheap and looks like it would work fine cannot be used because it is not approved.
