why does my Honda Civic 11th Generation (2022-Present) battery keep dying after a jump

Solution

1. Preparation

• Gather tools and materials: OBD-II scanner, multimeter, socket set, wire brush or battery terminal cleaner, safety gloves.
• Safety warning: Disconnect the negative battery terminal before beginning any electrical work to prevent short circuits.

2. Clean Battery Terminals

• Sub-step 1: Disconnect the negative terminal, followed by the positive terminal.
• Sub-step 2: Use a wire brush or terminal cleaner to remove any corrosion from the battery terminals and cable ends.
• Sub-step 3: Reconnect the positive terminal first, then the negative terminal.

3. Replace Battery (if necessary)

• Sub-step 1: If the load test indicates the battery is weak, remove the battery by loosening the hold-down bracket and disconnecting the terminals.
• Sub-step 2: Install the new battery by connecting the positive terminal first, followed by the negative terminal.
• Sub-step 3: Ensure the battery is secured with the hold-down bracket.

4. Test Alternator

• Sub-step 1: Reconnect the negative terminal if it was disconnected.
• Sub-step 2: Start the engine and use a multimeter to measure the voltage at the battery terminals.
• Sub-step 3: If voltage is below 13.8 volts, the alternator may need to be replaced.

5. Inspect and Replace Fuses (if necessary)

• Sub-step 1: Locate the fuse box and identify any fuses related to the charging system.
• Sub-step 2: Replace any blown fuses with the correct amperage rating.