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Don't consider the battery good just because all the lights work. It takes a lot more power to start the car (crank over the engine ) then it does to run the lights. Test the battery with a DVM. You should have over 12 volts with the engine off. Then start the engine and test again with the engine running. If the alternator is working properly you should see around 14-1/4 to 14-1/2 volts. If you don't have access to a DVM, and you got the car started, take it over to a place like Autozone. They will check the battery and charging system for free.

That said, you really don't describe the symptoms. Did the car turn over (crank) strongly or was it noticeably weaker than normal? Any other information you can give?

Mike
 
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