how to tell if my Toyota RAV4 XA50 (2019-2024) needs a new battery

Solution

1. Preparation

• Gather tools: multimeter, battery load tester, wrenches, wire brush or terminal cleaner, safety goggles, gloves.
• Ensure the vehicle is parked on a flat surface and the engine is off.

2. Remove the Battery

• Disconnect the negative terminal first: Using a wrench, loosen the nut on the negative terminal and remove it, ensuring it does not touch any metal.
• Disconnect the positive terminal: Repeat the process for the positive terminal.
• Remove any battery hold-down brackets or clamps.
• Carefully lift the battery out of the tray, keeping it upright.

3. Clean Battery Terminals

• Use a wire brush or terminal cleaner to remove corrosion from the battery terminals and cable ends.
• Ensure both terminals are clean and free of any residue.

4. Install New Battery

• Place the new battery in the tray, ensuring it is oriented correctly (positive and negative terminals in the right position).
• Reattach the hold-down brackets or clamps to secure the battery.
• Connect the positive terminal first: Slide it onto the positive post and tighten the nut securely.
• Connect the negative terminal: Repeat for the negative terminal.

5. Final Check

• Ensure all connections are tight and there is no corrosion.
• Start the engine to verify that it cranks normally and that dashboard lights are functioning correctly.