If you realize that the level of liquid has fallen to a significant extent, you will need to top this up. This can be done with distilled water. You cannot use anything but distilled water to top up the amount of liquid in the cells. You must not use water, as it has a high nutrient content, and this may cause problems with your battery or even damage it.
If your car or truck uses lead-acid batteries – and most vehicles do – you need to be very cautious that the level of liquid inside the battery doesn’t fall a lot.
This could be useful in preventing maintenance problems with the battery life.
Please be careful not to add more distilled water than I have advocated and not to enable the degree of liquid to grow to over half an inch below the well of this port. This is because the level of liquid inside the mobile could rise during battery operation, and if it does, it might well leak from the battery – and keep in mind that the liquid may lead to damage and is extremely corrosive if it happens to leak.
If you do so you’ll discover your battery’s capacity badly diminished, so the best policy would be to prevent clogs to the top of your skill.
By way of example, if you know you need to top up your battery every fourteen days or so, you will not be as likely to overlook that date. As a general rule, watering needs to be performed more often when you are working in a climate that is hot. If you are putting the battery to heavy use, you will realize that the electrolyte in the battery gets depleted that much faster.
Similarly, you cannot add sulfuric acid, as this could alter the particular density of the electrolyte within the cell. Thus, bottled water it is.
Increasing the amount of liquid in the battery is called watering, and can be best done with the battery at full cost.
If you are a conscientious owner and regularly check the levels of electrolyte in the battery, and top it up, you should make notes of only when you do this, and assess how long is usually required along with your individual pattern of use before you need to water your battery .
Regular checks of your own battery
Charge the battery into its maximum extent and then detach the battery from the charger, and start the caps to each cell. You should be aware that you ought to try this checking with something non-reactive, and this liquid can be corrosive.
Whenever it is absolutely acceptable to add distilled water to a battery, spilling electrolyte is never a good idea, as this actually results in considerable dilution of the electrolyte if you then top it up with distilled water.