my Ford Mustang S650 (2024-Present) battery keeps dying, what could cause it?

Solution

1. Preparation

• Gather tools: multimeter, socket set, wire brush or terminal cleaner, ammeter, and safety gloves.
• Disconnect the battery by removing the negative cable first, followed by the positive cable.

2. Clean and Secure Battery Terminals

• Use a wire brush to clean corrosion off battery terminals and cable connectors.
• Ensure terminals are tightly secured on the battery posts to prevent loose connections.

3. Test and Replace the Battery (if necessary)

• If the battery voltage is below 12.4 volts, it may require charging or replacement.
• To replace, remove the positive cable first, followed by the negative cable. Unscrew the battery hold-down clamp and lift the battery out.
• Install the new battery by placing it in the tray, securing it with the hold-down clamp, and connecting the positive cable first, followed by the negative cable.

4. Repair or Replace Electrical Components

• If a parasitic draw was detected, systematically disconnect fuses while monitoring the ammeter until the draw is eliminated; identify and repair or replace the faulty component.
• Ensure that all accessories are functioning correctly and are not remaining powered when the vehicle is off.

5. Verify Charging System

• Reconnect the battery and run the engine. Measure voltage at the battery terminals; it should read between 13.8 to 14.5 volts.
• If the alternator is not producing adequate voltage, replace it as necessary.