Why do the headlights drain the battery?
10

Asked by GuruJHJD1 Aug 01, 2020 at 11:20 PM about the 2004 Ford Mustang Coupe RWD

Question type: Maintenance & Repair

When lights are turned on the battery
completely drains while driving

3 Answers

F_O_R answered 4 years ago

Use a multi meter to test for power at the battery while the engine is running. You should see 13.5 to 14.5 volts if the alternator is working.

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