Start vehicle up and take vehicle to an AUTO-ZONE they will check the entire charging system for FREE. This could BAD battery or a BAD alternator or even maybe both. So let not guess or if you have a volt meter at home with vehicle running voltage at battery polls should be at least 14 volts and without vehicle is running battery should be at least 12volts how ever with voltmeter you can't LOAD-TEST battery or alternator, But if alternator is less than 14volts it may be charging too low and if batter is less than 12 after it was fully charged or after car had been running for at least 15 minutes> BATTERY IS BAD> Good Luck and contact if you need more help. Thanks for using FIX YA
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