Toyota 28800-07010 Battery

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If the stereo in your vehicle is equipped with an anti-theft system, make sure you have the correct activation code before disconnecting the battery. A routine preventive maintenance program for the battery in your vehicle is the only way to ensure quick and reliable starts. But before performing any battery maintenance, make sure that you have the proper equipment necessary to work safely around the battery. There are also several precautions that should be taken whenever battery maintenance is performed. The battery produces hydrogen gas, which is both flammable and explosive. Electrolyte contains poisonous and corrosive sulfuric acid. Note the external condition of the battery. If corrosion is evident, particularly around the terminals, the battery should be removed for cleaning. Clean the cable clamps thoroughly with a battery brush or a terminal cleaner and a solution of warm water and baking soda. Make sure that the battery tray is in good condition and the hold-down clamp bolts are tight. Any metal parts of the vehicle damaged by corrosion should be covered with a zinc-based primer, then painted. The manufacturer recommends the battery be removed from the vehicle for charging because the gas that escapes during this procedure can damage the paint. Slow-rate charging is the best way to restore a battery that's discharged to the point where it will not start the engine. It's best to use a one or two-amp battery charger. The average time necessary to charge a battery should be came with the charger. Remove all the cell caps (if equipped) and cover the holes with a clean cloth to prevent spattering electrolyte. Disconnect the negative battery cable and hook the battery charger cable clamps up to the battery posts, then plug in the charger. If you're using a charger with a rate higher than two amps, check the battery regularly during charging to make sure it doesn't overheat. If the battery has removable cell caps, measure the specific gravity with a hydrometer every hour during the last few hours of the charging cycle. Some batteries with sealed tops have built-in hydrometers on the top that indicate the state of charge by the color displayed in the hydrometer window. If the battery has a sealed top and no built-in hydrometer, you can hook up a voltmeter across the battery terminals to check the charge.