Batteries without electrolyte in a dry-charged version can be supplied to spare parts. To bring such a battery into working condition, it is necessary to remove the existing technological plugs or sealing tape. Then a small jet, through the funnel (glass or acid-resistant plastic) pour electrolyte into the battery with a density (reduced to 25°С) 1.28 g/cm3 for temperate regions or 1.23 g/cm3 for the tropics. Battery conditioning operations must be carried out at ambient temperature (25±10) °C.
Soak the battery for 20 minutes so that the plates and separators are saturated with electrolyte. Then check the battery voltage with no load.
If the battery voltage is at least 12.5 V, then it is ready for operation. At voltages less than 12.5 V but greater than 10.5 V, the battery must be recharged to the voltage specified by the manufacturer. If the voltage is less than or equal to 10.5 V, the battery is rejected.
As a result of impregnation of separators and plates, the electrolyte level in the battery will inevitably decrease. Therefore, before installing the battery on the car, it is necessary to bring the level to normal by adding electrolyte of the same density as at the beginning of filling.
It is imperative to charge the battery after filling the electrolyte if:
- the initial operation of the battery will take place in difficult conditions: in cold weather, with frequent engine starts, etc.;
- the battery has been stored for more than 12 months from the date of issue.