answersLogoWhite

0


Best Answer

Because tap water contains minerals that will contaminate the battery electrolyte.

User Avatar

Wiki User

13y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: Why do you need to fill a lead-acid battery with distilled water?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

How often you supposed to fill battery water in the car battery?

Never if it is a sealed battery. If it has fill caps you check it about every 3 months and fill with Distilled Water only.


How do you fill a battery with acid?

Make sure it's not "Maintenance Free." Add distilled water to the battery.


Do you put water in a battery?

If it has fill caps and any of the cell levels are low, you add distilled water.


How do you add water to a Yamaha 125 Atv battery?

If it is a sealed battery you cannot. If it has fill caps, then remove the caps and fill each cell to the full mark with distilled water.


What type of water can you fill in a empty car battery?

De-ionised water Distilled water is recommended if the battery just needs topping off. Sulfuric acid if the battery is empty.


When to add water to a battery?

If it is not a sealed battery you add distilled water when the level is below the top of the fill hole which is usually about 1/2" below the top.


When do you add water to a battery?

If it is not a sealed battery you add distilled water when the level is below the top of the fill hole which is usually about 1/2" below the top.


Do you fill your car battery above or below the cell level?

Fill it to the bottom of the opening which is above the cells. Use only distilled water and not tap water or drinking water.


How much water do you put in a car battery?

fill it until you just cover the top of the plates. Use only distilled water to fill it. Do not tamper with maintenance free batteries. They are sealed for life.


Vw gti change battery water?

No, you don't ever change battery water. Batteries have hydrochloric acid in them, not water, even though you use water to top them off. Do not mess with the acid in your battery. You should always use distilled water to fill your batteries.


When you use an autoclave fill the water reservoir with?

distilled water


Ford transit van dashboard light has come on with a battery what does this mean?

It means your Battery water level is low.Now depending on what type of battery you have, you can either unscrew the 6 or 8 knobs on top of the battery it-self and fill it to the brim with distilled water (If you use normal water it will die quicker.Or if you have the cash on you, buy a new battery.