I went to pick up my kids from daycare yesterday. The car didn't start in that parking lot. It didn't crank, just a bunch of "tick,tick, tick" sound when the key is turned on. The clock was reset to 1.00PM, radio/cd all reset to factory default. I brought my second car (also camry), tried to jump start. Still it didn't crank. I swapped the battery and the car started. I was relieved thinking it is just a dead battery. (battery light never came on though. Wife was driving the car in the morning and she told, radio/cd was reset to factory default and she thought I might have messed up something ealier. I never touched the car in last week, she was dead wrong this time

). So I took the bad battery and went to autozone, they checked and told it is bad battery. I came back to the car, car started fine, but my cd/radio was reset back to factory (i know this becase i was listening to track 5 on my cd and now it is back to track 1). I went to another shop and the damn cd/radio reset back to track 1. So went back to autozone, they tested the alternator and told it is fine. Then they checked the battery (the one swapped from my second car), and they told it is bad. wtf?, two batteries are gone bad within 2 hours. I gave the bad battery1 for a charge and went home. I was afraid, so i disconnected the battery2 from the car and in the morning re-connected, car started up. Went to drop the kids at daycare and the radio/cd reset again. Looks like something is draining the battery. Nothing is connected to any power outlets in the car.
When the radio/cd resets, it resets the air re-circulation back to off (the middle button between a/c and widnow heater). I am pretty sure, the clock is NOT resetting.
What could be the problem?
I tested the alternator myself: first without the car running, checked the voltage between terminal, It is around 12.5v.
Started the car, put a/c and radio on and checked the same terminal voltage. It is hovering around 13.95 and 13.98v. So looks like the alternator is ok. I didn't check all the fuses, that is my next step. What else to try?
Both batteries are around 3-4 years old, never had any issues at all.
Camry 2000, LE, 4 cyl, 92K miles on it.
Because I didn't want to be stranded, I swapped the battery again from the bad car to the good car and is now driving the good car. I stopped couple of time, and radio/cd never resetted on the good car. So this is not battery related. Something else is screwed up with the oter car. No repair or CEL on that car in a long long time.
Any help will be greatly appreciated.
Thanks
John