Voltage problem on 1995 Chevrolet Corsica

How can I know if I need to remplace the battery or the alternator, I got readings of 10.3 to 14.23 volts unestable, thanks for your answers

by in Birmingham, AL on February 14, 2010
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1 answer
ANSWER by , February 15, 2010
bring your car to a Napa store and they can test the battery in the car