Toyota Repair: battery goes dead, alternator problem, battery tester

Question
I have a 93 Camry with a V-6. The battery keeps going dead. I have put 3 New batteries in 9 months. I had the alternator checked 3 times(off car).It checks good . I put a voltmeter on the battery with the car running and the voltage drops off. It starts @ 14.3 volts and drops steadly.

Answer
After the 14.3 volt reading what does it drop to? Sometimes checking the alternator off the car is not a good indication that it's good, the alternator should be checked on the car with the engine running and with a load applied, this is done using an alternator/battery tester, I think you still have an alternator problem, try having it tested under actual current demand load conditions.