hmmm, actually there is another way... crap, gotta get to the patent office ASAP!
I could envision at least 5 or 6 ways around this problem myself; unfortunately, the manufacturers have likely already thought of them and figured out either why they don't work or what the limitations of the switching technology are.
As it stands, I'm not convinced that exposing the internals of the battery to juice is actually
killing the battery itself. I think it kills the switch, and if the switch doesn't work, the battery is effectively 'dead'. Think about it: that little hole is there so that the switch can be activated, therefore the switch must be subjected to the airflow through that hole, and if you introduce liquid into that hole, it's going to come into contact with the switch.
On manuals: all of my 510 stuff is manual. It's more of a pain than it's worth, other than that it's protected. It's very easy for the switch to go off in your pocket if you're not careful. That the BMF doesn't need a primer puff (and it definitely doesn't) makes these very good auto batteries.
Congrats on your folks quitting.
