I pulled into a parking lot and shut it off. While I was finishing my phone call, I saw what I thought was steam coming out from the front. I hung up, opened the hood, and all was dry, but then I smelled something electrical burnt. I located the source in the fusebox, but had no tools and it was raining. Everything electrical worked, but I made sure to go straight home from the hardware store.
As soon as I got on the road, I noticed it wasn't charging. I was only about 15 minutes away, but I know I just made it because the wipers were barely moving by the time I got home. I don't know when I'll be able to find the problem due to the weather, so I have to just sit here and worry about it (with the battery disconnected).
Any ideas what it was?

 

could be any item that's running into the fuse box. sounds like something some where shorted out. You might look on the backside of the box to see if you find damage. that would help trace it.

 

I melted a inline fuse on my old e fans set up. It poped the fuse, then arced and caught the rubber pieces of it on fire. It reeked.

 

There was so much smoke that by the time I looked, it had cleared under the hood but was still in the fuse box. If I checked the air filter, it probably would have been in there, too.
It was the alternator, it melted a hole in the back cover. I took off the cover and the voltage regulator turned into a couple of globs of metal and ashes. The guy said that happens when you overload them long enough.
If I didn't carry a fire extinguisher, there definitely would have been a fire.
I replaced the 105A with a 130A, all is well.