Because car batteries have metal plates in them to conduct the energy of the battery and the water helps allowing the electricity to flow in the battery when the vehicle is running. After the water has been in contact with the conduit in which the electricity flows (the conduits are acid filled) the water becomes acidic as well and so caution must be used when filling the battery and when removing or carrying it.
Also, as a side note, if there is no water in the battery there is an increase in heat and a deterioration of battery plates. This restricts the battery from charging and destroys the battery plates. In contrast, if there is too much water, it can cause the battery to overflow during operation of the vehicle and start corrosion on metal parts around the battery.
zdistilled
Add Distilled water to the battery and then charge it fully with a battery charger. Do not add tap water.
Only distilled water and nothing else.
Distilled water is preferred and recommended in a non sealed battery. Tap water, with the minerals in it, should not be used unless you had to.
Well, it is elementS....and the battery is a lead-acid base battery....and the battery uses Water (H2O) sulfate (SO4)
add water and charge the battery
a car battery is made of a plastic casing, lead plates and a sulfuric acid/water mixture
The best water to use in a car battery is distilled water. Bottled water can be used in a pinch however there is a possibility of damaging a cell. Rule of thumb would be to always use distilled water unless you absolutely have no other choice.
The battery is used to start the car, and then the alternator takes over to keep the supply of power and to recharge the battery.
Car batteries are filled with sulfuric acid, not water. The battery fluids get "topped up" with distilled water if they get low.
Sulfuric acid is used because it combines with water to produce electrolytes. Inside a car battery, these electrolytes cover the battery plates, and are used to power the crankshaft when the car and engine is first started, so that the crankshaft can start to turn and the process of supplying fuel & air to the engine can begin. Hope that helps.
You will shorten the life of the battery. Only add Distilled water to a battery.