The stated ‘improvements’ were implemented fifty years ago. How is that information relevant to anything we deal with, at this late date? And that said, I’d also challenge the assertion that hard-rubber battery cases allowed the acid to seep out right through the walls of the case. I’ve worked with plenty of old batteries, and have never once ever encountered a situation where the electrolyte was just migrating out through the case material.. I mean geeze, can you think how swiftly that would damage the battery holder / case?

And what, may I ask, was so rude about my comment(s)? Do you really object so strongly to my use of "hooey"? Wow!

Man, some thin little skins around this joint, let me tell you.. =/