Ray thanks for the reply

(Here's my thinking:

Swap batteries from my car to his
1. If MY batt in his car is fine, batt is fine, probably my alt.
2. If MY batt in his car is crap still, could be either my batt or alt, but probably which one?

3. If HIS batt in my car is crap volt readings, its my alt.
4. If HIS batt in my car is fine, probably my battery.

Does this seem like a logical process, comments suggestions? )

I left it charging all night (8 hours) and checked it before I left, it was at 13.8. 1 minute later, 13.5. I dont' know if its normal to lose some volts after being charged. I'll check the voltage again in 11 hours or so. IF the volts are back down to 11.5, definite alt?

I'll do that process I described earlier, should find out the problem by tonight. Thanks a lot for everyone's replies, keep em coming.