With the "boiling" of storage batteries (accumulator batteries), the level drops and the density of the electrolyte increases. If the necessary measures are not taken in time, the battery will eventually lose its capacity. You can restore these indicators if you add water to the battery.
It is necessary
distilled water
Instructions
Step 1
Clean the surface of the battery
Cleaning the battery surface is necessary for several reasons. Firstly, the surface can be contaminated with splashed sulfuric acid, which is unsafe for the worker and his clothes, secondly, contamination can get inside the battery and lead to its damage, and thirdly, it is more pleasant to work in cleanliness. To clean the surface, it is enough to gently wipe with a damp cloth, preferably moistened with a baking soda solution. The recesses on the top cover, especially around the plugs (or filler holes), are best cleaned with a match.
Step 2
Add water
You can only add distilled water to those jars where the electrolyte level is below the minimum mark. You can determine this in translucent batteries by the "risks" on the sides of the case. Tides are visible inside the fill holes to indicate the top and bottom levels. If there are no marks, then you should focus on a level above 10-15 mm above the top of the plates. It is best to add water to the battery using a rubber bulb, a large medical syringe, or using an aerometer (or rather an outer flask) to measure the density of the electrolyte.
Step 3
Measure the density of the electrolyte
The density of the electrolyte after adding water is not restored immediately. This is due to the fact that in the battery there are small gaps between the plates, and the mixing of liquids occurs very slowly (sometimes the density evens out after a few weeks). Therefore, after adding water, it is necessary for the battery to settle for several hours. Only then the density indicators will approach the real ones, and it can be measured. To accurately determine the density, it is necessary to take several measurements at regular intervals. And if the difference between the current and previous measurements is negligible, the battery is ready for use after recharging.
