Is titanium more resistant to the chemicals released by batteries when they leak?
I know when every my Al flashlights get a battery leak, they are most often trashed... As in: The insides are so corroded that you cannot even unscrew the end, because the threads do not even seem to BE there anymore...This has happened to mearly all of my Maglights(At one time, they were nearly the only 'good' thing you could get around here...), and also some pilot's flashlights, and others that I have...
It almost makes me want to go back to Carbon/Zinc batteries(I only use good name brand Alk's these days), because I THINK that Al is resestant to that type of battery acid...