Glossary
Distilled Water
Distilled water to refill batteries that lose fluid.
Classic lead-acid batteries, also known as wet batteries, lose fluid during operation. The liquid level must therefore be checked regularly and topped up if necessary. Distilled water is required for this purpose so as not to change the composition of the acid. Unsuitable water would destroy the electrodes within a very short time, rendering the battery unusable. Maintenance-free batteries cannot be refilled with battery water.