my Toyota RAV4 Fifth Generation (2019-present) battery keeps dying what could it be

Solution

1. Preparation

• Tools Required: Multimeter, socket set, wire brush, safety gloves, safety goggles.
• Safety Warnings: Disconnect the battery before working on electrical systems to prevent shock or short circuits.

2. Clean Battery Terminals

• Remove the battery cables, starting with the negative terminal.
• Use a wire brush to clean any corrosion from the terminals and cable clamps.
• Reconnect the cables, ensuring a tight fit.

3. Replace the Battery (if necessary)

• If the battery is old or fails the load test:
  1. Disconnect the negative terminal first, then the positive terminal.
  2. Remove any battery hold-down brackets.
  3. Lift the battery out and replace it with a new one.
  4. Position the new battery in the tray, secure it with brackets, and connect the positive terminal first, followed by the negative terminal.

4. Repair or Replace Alternator (if faulty)

• If the charging system is not functioning:
  1. Disconnect the negative battery terminal.
  2. Remove the drive belt from the alternator.
  3. Disconnect the electrical connections and mounting bolts from the alternator.
  4. Install the new alternator by reversing the removal steps and reconnecting the battery.

5. Address Parasitic Draw (if identified)

• Identify the circuit causing the draw by removing fuses one at a time until the draw drops to an acceptable level.
• Repair or replace the components associated with the affected circuit.