Toyota 28800-07010 Battery

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To ensure reliable starts and perform battery maintenance safely, several precautions and steps should be followed. Adequate safety equipment including a face shield or safety goggles, baking soda, petroleum jelly, battery post/cable cleaner, treated felt washers, a puller, and rubber gloves should be available for working around the battery. Before any maintenance, ensure the engine and all accessories are turned off, and disconnect the negative terminal cable from the battery. The battery emits flammable and explosive hydrogen gas, so avoid creating sparks, smoking, or lighting matches in its vicinity. Charge the battery in a well-ventilated area. The battery's electrolyte contains poisonous and corrosive sulfuric acid, which should not contact eyes, skin, or clothing, nor should it be ingested. Safety glasses, rubber gloves, and protective clothing are recommended when working near the battery. Inspect the battery's external condition, checking for corrosion, loose connections, cracked cases, or loose hold-down clamps. If corrosion is present, especially around the terminals, remove the battery for cleaning. Carefully clean the cable clamps with a battery brush and a baking soda solution, ensuring thorough corrosion removal. Additionally, clean the terminals and battery top with the same solution while avoiding any contact with the battery's interior. Confirm the battery tray's condition and tightness of hold-down clamp bolts. Any corrosion-damaged metal parts should be covered with zinc-based primer and painted. For charging, it is recommended to remove the battery from the vehicle to prevent damage to the paint due to escaping gas. Slow-rate charging with a one or two-amp battery charger is advisable for restoring a discharged battery or maintaining its charge, especially during the winter. Higher amperage chargers can be used but should not exceed 1/10th of the battery's amp/hour rating. It is crucial to avoid rapid boost charges, which may damage the battery, and to use them only in emergencies. The average charging time for a trickle charger is typically 12 to 16 hours. When charging, remove cell caps (if equipped), cover the holes, disconnect the negative cable, and connect the charger's cables to the battery posts (positive to positive, negative to negative) before plugging in the charger. Verify that the charger is set to 12-volts if it has a selector switch. For chargers with rates higher than two amps, monitor the battery to prevent overheating. If using a trickle charger, it is safe to let the battery charge overnight after initial regular checks. When applicable, use a hydrometer to measure specific gravity during the last hours of charging, and consider the battery charged when specific gravity readings remain unchanged for two hours, with visible electrolyte gassing in the cells. If a sealed-top battery lacks a built-in hydrometer, use a voltmeter to check the charge, with a fully charged battery reading 12.6 volts or higher after surface charge removal.