If you are ordering your battery from batteryboy.co.in, you don't need to replace the battery yourself as we provide FREE installation service. However, if you have to install the battery yourself, you are advised to follow the below mentioned instruction:

1. Turn OFF the car engine and pull out the key
2. Mark the positive (+) cable, so that you can remember the proper connection
3. Now you need to remove the ground / negative (-) cable first
4. Make use of proper tools to avoid damaging cable clamp bolt heads
5. Now remove the battery and start cleaning corrosion and dirt from the battery tray in the car and also from the battery (make sure that the battery tray is free of rocks and other corrosive materials)
6. Make sure that the ground cables or the negative cables are properly grounded to the engine block / frame
7. Now place the other battery properly in the battery tray (remember that the positive (+ve) post of any automotive batteries is tapered and has slightly larger diameter)
8. Connect the marked positive (+) cable to the positive terminal of the new battery first. Keep in mind that you should connect the negative (-) cable at last
9. Now use Vaseline / petroleum jelly on the battery terminal posts
10. At last check and verify the correct charge voltage