Toyota 28800-02010 Battery

The battery's surface charge must be removed before accurate voltage measurements can be made; turn on the high beams for ten seconds, then turn them off, and let the vehicle stand for two minutes. Next, check the battery state of charge by visually inspecting the indicator eye on the top of the battery; if the indicator eye is clear, charge the battery. Perform an open voltage circuit test using a digital voltmeter, connecting the negative probe to the negative terminal and the positive probe to the positive terminal; a fully charged battery should measure at least 12.4 volts. If the voltage is less than specified, charge the battery before proceeding. For a battery load test, use a load tester to evaluate the battery's ability to operate the starter and accessories during heavy amperage draw; maintain the load for 15 seconds or less, ensuring the voltage does not drop below 9.6 volts, adjusting for cold temperatures as necessary. To replace the battery, disconnect the negative cable first, followed by the positive cable, then remove the hold-down clamp and take out the battery. Inspect the tray and related fasteners for corrosion or damage, cleaning any corroded areas with a baking soda/water solution and repainting as needed. If replacing the battery, ensure the new one matches the dimensions and ratings of the old one and is fully charged before installation. Reinstall by connecting the positive cable first and the negative cable last, applying a light coating of battery terminal corrosion inhibitor to the connections to help prevent corrosion.

Before maintenance, make sure you have the right safety equipment and disconnect the negative terminal cable. If there is corrosion, remove the battery and clean it with a solution of warm water and baking soda. Corrosion can be removed with a water and baking soda solution. Damaged parts should be covered with a zinc-based primer and painted. Use a slow-rate charger to restore a discharged battery.

If corrosion is present, clean it using a baking soda/water solution and repaint the area as necessary.