One of my biggest fears happened today. My e-cig was in my shirt pocket and fell out as I leaned over the pool. Before I could grab the skimmer it had rolled down to about a 6ft depth. I finally got it out after about 2 minutes, rinsed the battery and blew it out immediately with canned air. I soaked the atty in everclear for an hour, blew that out and it all still works. The cartridge was tossed in the garbage as I'm afraid of the possible chlorine residue. I thought for sure the battery would have shorted, but been using it for about an hour now and all is well.