I hope I'm posting this in the right area. A couple of days ago, I noticed a faint hot smell, something close to what you would smell turning on a hair dryer (not a sulfuric smell). This would only be when I come up to a stop and the smell dissipates after a few seconds. This makes tracing the smell quite difficult. However, I did notice what looks like traces of battery acid right near the rectangular caps. I'm going to check my alternator output when I get out of work tomorrow morning, but is it possible it can be the battery itself? There are no check engine lights. Also, if anyone experienced this issue and can maybe point out something I'm overlooking, it would be greatly appreciated.