Well, the battery problem appears to be a charging problem. Earlier today I put in a “known-good” battery and it worked fine. But while driving home tonight with the headlights on I noticed the thing was discharging. When I got home, I left the truck on the street while I moved the minivan out of the driveway. I stopped the truck since it was rather late and the truck is not exactly what you’d call ‘quiet.’ It wouldn’t restart. Battery nearly completely dead. So a booster-start to get it in the driveway and I’ll deal with it in the morning. But it’s pretty obvious to me that the problem is with the charging system and not the battery itself. Aaaarrrggghhh!