So the other day I was happily wearing my Ponto BAHA and it was a hot day. The wife and I decided to go swimming in our pool. So I get changed and then I went out and cleaned the pool up a little bit. Then, as my wife was getting in, I got in myself. And then I went under water. That's when I started hearing all this feedback only my little BAHA device could emit. I burst out of the water, popped it off (whilst cussing all the time!) and popped the battery out. I then went in the house, shook the water out best I could, used a hair dryer on it and then I threw it into a baggie full of rice for a couple of days. So I just tried it on and wouldn't you know it, it worked! No problems! So, if this should happen to you for any reason, probably the best thing you could do is get that battery out as quick as possible. Then do the rice thing to make sure the moisture is completely out before trying it again!
Jay