It would help to know what your driveway is made of (blacktop, brick, concrete, etc.) The best thing you could use would be "Lime Away" they sell it any big box store or even Walmart & Target may carry it. It is safe on brick & concrete, pour a little bit directly onto the stain & rub with a wire brush, just hose away! Of course if your driveway is black top just get a can of black spray paint, or seal coat it.
Baking soda and water. It will neutralize the acid. After removing the acid clean the post with a battery cleaning tool you can buy at any auto parts store.
If you are asking about cleaning the exterior of the battery then the answer is yes. The baking soda will neutralize the battery acid and the water will clean everything off.
Quickly.
If you have no battery acid in the battery yes it can no longer hold or maybe hold for very little time hold charge inside of the battery You need battery acid to keep the cells charged and not to be dryed out. Good question
Wash it off?
yes
Pour a solution of water mixed with baking soda on the battery, let it sit for 5 minutes, and then wash it off with plain water. The baking soda will neutralize the acid.
Anytime you run an automobile battery down you shorten the life of that battery. An acid leak in a sealed battery means the battery must be replaced. If it is leaking from a battery in a battery with filler caps just add distilled water to the full mark and wash the acid off the vehicle battery compartment.
Baking soda works well if you apply it immediately after washing the acid off. If you wash the acid off quick enough you will get no burn.
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.
Battery acid is sulfuric acid. Sulfuric acid is very corrosive and will burn your skin if not washed off very quickly.
NO! never remove the acid caps! EVER! only if it is a battery to something like an ATV or dirt bike you would take the acids caps off and only to refill the acid. if it is a normal car battery just leave them on. if you are talking about the (+) and (-) battery TERMINAL caps then on some vehicles you have to take them off so that the charger can come in contact with the battery posts.