Check the terminals for powdery buildup, which may be green, blue, gray, or white. Use an emery cloth or 100-grit sandpaper to carefully clean the corrosion off of the terminals until they’re shiny. Remember that battery acid is corrosive, so avoid getting it on your skin or clothes. Take a picture of or write down any information on the old battery, such as the size, dimensions, and part number. Head to an auto parts store and give the clerk this information as well as the year, make, model, and engine size of your vehicle. They will be able to find you the appropriate replacement.  Automotive batteries vary in size and electrical capacity so make sure you purchase one designed for your specific vehicle. If you live in the U.S., you may want to bring the old battery with you. Some auto parts stores will let you trade in the old battery so you don’t have to pay a “core fee” for the new one. If the auto parts store won’t take the old battery off your hands, take it to a service or recycling center for disposal. Do not throw it away because it contains corrosive material. Place the new battery in the battery tray and secure it to the bracket. Simply reverse the process you used to remove the battery from the bracket. Then, coat each of the terminals in a thin layer of lithium grease to prevent corrosion.  Make sure the battery is oriented the same way as the old one. Check that all the fasteners on the bracket are secure so the battery doesn’t vibrate or move around while you’re driving. Do not spray the lithium grease on any other parts of the engine block other than the positive and negative terminals. Undo the cable tie securing the positive cable to the engine bay, being careful not to touch the end of it to anything metal. Put the cable over the terminal and tighten it down with a wrench. Put the cover over the terminal, if the battery has one. Repeat the process to remove the cable tie and reattach the negative cable to the negative terminal. Tighten the clamp with a wrench and make sure neither the wrench nor the negative cable come into contact with anything metal, as this could cause a dangerous electrical discharge. If your battery has a plastic cover, replace it at this time. Check that you removed all tools from under the hood, then close it. If you’ve done everything correctly—and the battery truly was the cause of any power problems you were having—your car should start right up. If necessary, enter the alarm code. Make sure all of your electronic devices are working properly, then reset your clock, radio, and navigation system.
कोरोज़न (corrosion) हटाने के लिए बैटरी के टर्मिनल्स को साफ़ करिए: सही रिप्लेस्मेंट (replacement) बैटरी खरीदिए: नई बैटरी को ब्रैकेट्स में अटकाइए और टर्मिनल्स पर ग्रीज़ लगाइये: पहले पॉज़िटिव केबल को रिकनेक्ट (reconnect) करिए: उसके बाद निगेटिव केबल को फिर से कनेक्ट करिए: हुड बंद करिए और अपनी वेहिकल चालू कर दीजिये: