It is important to maintain the proper water level in your car's battery to ensure that it functions properly and has a long lifespan. One way to do this is to use distilled water to fill the battery.
What level should I fill the battery to with distilled water?
When filling a battery with distilled water, it is important to know the proper level at which to fill it. The water level in a battery should be just below the bottom of the refill hole (literally a CM or two). This allows for proper expansion of the water as the battery charges and prevents the water from spilling out.
Note: Overfilling a battery with water can be just as detrimental as underfilling it. Overfilling can cause the water to overflow and spill out of the battery, potentially causing damage to the battery or the surrounding area.
Does my battery need distilled water?
Not all car batteries require water to be added. Some batteries are sealed and maintenance-free, meaning that they do not require the addition of water. If you are unsure whether your battery requires water, it is best to consult the owner's manual or a mechanic.
If your battery does need water, then you are always best using distilled water. Distilled water is 100% pure water and will contain no minerals, chemicals or other contaminants that will damage your car battery.
How Often to Change Water in Car Battery?
The distilled water in your car battery should be changed every 6 months to a year. This is because the water in the battery is exposed to high temperatures, which can cause it to evaporate, and also to the chemical reactions within the battery which can cause impurities to form.