There are many tools, but consider just using gloves and a small scraper.
Battery terminals or battery posts.
take the battery terminals off and clean them and the battery posts real good with a wire brush and reinstall and see what happens.
I would check the battery terminals, probably a buildup of corrosion between the posts and the terminals, clean them up with boiling water and sandpaper till both parts are shiny clean. If you are connecting the jumper leads to the battery terminals when jump starting and it works fine then this is the only possibility.
Normally it is imposed on the battery case next to the posts. The larger post is positive.
A 1993 Ford Aerostar takes the BCI group size 65 battery which has the terminals / posts ( on TOP of the battery )
your battery terminals may have battery acid build up between the terminals and battery posts, remove both terminals and clean with boiling water refit terminals and try to start again...same thing happened to me once...
There is a product that looks like flat washers made of felt that you can fit over the battery posts that will prevent corrosion (don't remember what it's called, but available at your local auto aprts store or Walmart). You can also try putting a dab of grease on the battery posts and terminals after cleaning. The grease will work best for you to help eliminate corrosion's. The point of putting grease on the terminals is to keep oxygen from coming in contact with the terminals and also help with keeping acid off the posts. When you clean the terminals use baking soda and water to neutralize the acid which will help for future corrosion
Battery corrosion can be prevented by covering terminals with grease or installing washers under the terminals
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.
yes..... Simply disconnect the positive and negative cables from the battery,then clean the posts on the battery and the inside of each terminal with a post cleaner (inexpensive tool found at parts stores)or a wire brush until both posts and both terminals shine like new. Then just connect the battery charger directly to the battery posts red goes to positve(+) black goes to negative(-). Once the charger is finished charging the battery then turn off the charger and remove the connectors..then put the battery cables back on the battery and try starting the car...
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.
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.