Thanks, D. Any thoughts on the overnight thing? Am I just being paranoid?
I won't charge my batteries while I'm out of the house. I will charge them overnight, but only if necessary.
I use a fancy tin container to charge in, just in case. If I didn't have that, I would use a pyrex baking dish. Plus, I only charge batteries in the room I'll be in most of the time while they're charging so I'll be there to fix anything that may go wrong.
I've never had anything explode or catch fire. But, I do walk by and check the batteries occasionally and have had a couple of them get hot enough that I unplugged them as a precaution. Not so hot that I was worried about a fire. Just hot enough to want to *rest* the battery for a while before continuing to charge.
I had one eGo charger that tended to do that (make the batteries get very warm while charging). I threw it away and started buying higher quality eGo chargers. My regular charger is an Xtar. Never had any problems with it.