Crossed battery jumper cables
My husband who doesn't have a mechanical bone in his body, God bless him, had to jump start our car the other day. He used our 1994 Ford Aerostar to do it. He accidentally mixed up the negative. And the pos. on the van battery but did it correctly on the car battery. Now the van's battery light is on, the voltage indicator is on the low side of normal and the headlights are very dim. The van still starts without hesitation (knock on wood), but I just know I'm going to go out there one day and the thing is going to be dead. So far I haven't noticed anything else wrong, but I'm waiting for the other shoe to drop. Any ideas on what he "fried"?