IE no electrical at all.

No locks, no lights etc.

At this point I'm hoping it's batteries (I've had some phantom drain in the past) and I wouldn't be surprised to find out the batteries are cooked well ahead of when they ought to be.

Also, last time the batteries went one of them cracked and there's corrosion on all sets of terminals. I've cleaned them up but their still ugly.

I did disconnect batteries and re-connect, I got electrical back... I then disconnected as I was short on time.

My plan of attack tomorrow is load test both batteries out of the truck. Clean up both sets terminals and replace if necessary. Probably scrub out my battery tray and spray some rust converter in there as well.

If the batteries are good I'll put them back, if not I'll replace them.

I guess my major question is, what will cause the no electrical problem? The batteries definitely have juice in them. The truck starts fine and I put a charger on the truck about once a month when we're not really driving it much. What mechanism would cause it to half turn over and then cut all power?

Thanks!