You can clean the posts on your battery with sandpaper, or scraping the with a wire brush, or a knife. You should also clean the inside of the connectors. If they have gotten to that point and the battery is not sealed, you should check the level of the fluid. if it is low, fill it with distilled water.
No, but they will corrode at the battery posts. Clean them off with water and baking soda. Then use a battery post cleaning tool to clean the post off.
Because the gas evolved has pressure.
The vehicle battery is located below the trunk floor. Jump-start positive and negative posts are located under the hood on the driver's side of the vehicle
Your battery connection is bad or your battery power is very low. Make that the battery posts are clean and not loose.
Corroded battery cables. Remove the battery cables, negative first, and clean the cable connections and the battery posts. If that does not help the battery needs charging or is defective.
take the battery terminals off and clean them and the battery posts real good with a wire brush and reinstall and see what happens.
On the top of the battery unless it has side connections which are on the side and are not posts but female connections.
If you disconnect without turning off the charger, the sparks caused may ignite the hydrogen discharged from the battery while charging.
Yes, hook the charger to the jump start posts under the hood.
Impossible to tell for sure, but most likely the contact with the terminals/posts on the battery, and the cables to the vehicle, are not substantial (good) enough to crank the starter. Although lights work, there needs to be little to no resistance to the power available in the battery to the starter. Causes are likely - dirty battery terminals/posts - dirty corroded cables - cables too loosely connected to battery - battery is too old/weak. try cleaning the posts with emery cloth or fine sand paper till shiny - same for inside the cables - a file can sometimes work to clean here - ensure that cables are properly seated down the posts far enough to ensure maximum contact. tighten firmly so cables cannot be wiggled off - but careful not to overdo it - cable heads can split/break - contact is now comprimised. bottom line - need clean and firm contact cables/posts.
It depends on what you are referring to. Posts can be comments or additions to Web sites on the computer, a battery has posts that the cables connect to. Fence posts. You can post a letter. Since this is under car parts and repairs, I will assume battery posts. A battery with top posts has them as a part of the battery and they cannot be replaced. A side post battery uses a bolt to connect the battery cable to the battery with a flat connector. You can get adapters that screw into the bolt hole in the battery and let you use a side post battery in a car that uses a top post. You can get them at an auto parts store or any place that sells car batteries.
Battery terminals or battery posts.