Originally Posted by Sepulcrum
Not sure about your numbers but you are correct. I'd imagine you could stop somebodies heart using an airsoft battery if you set it up in a manner that the current passed through the heart. THOUGH the likelyhood of anything more than a slight tingly feeling if in the water with a battery is minimal at best.
Main reason to not submerge the battery is that doing so will make the battery very useless very fast.
The numbers seem off to me, but I ripped them straight from Wikipedia, thus my little aside there about how reliable they are. Suffice it be said, the likelihood of any AEG battery killing you is extremely low. Just thought I would make mention that voltage really doesn't play into the pain/lethality of electrocution unless you're getting to levels where it can cause severe burns.
As everyone's said, though, I wouldn't try putting your battery in water. I wouldn't try putting any battery in water.