Charging the Skoda Octavia battery

Carefully clean the battery removed from the Skoda Octavia car, especially its upper part, check the electrolyte level and, if necessary, bring it to normal (if a serviceable battery is installed on the car).
The Skoda battery is charged with a current equal to 10% of the nominal value of the battery capacity. For example, a battery with a capacity of 75 A * h must be charged with a current of 7.5 A. If the battery is serviceable, charging is carried out with the covers turned out. A maintenance-free battery is charged by an automatic charger. It is allowed to charge a maintenance-free battery with a current equal to 5% of the nominal value of the battery capacity. Charging is carried out until the onset of abundant gas evolution and the achievement of a constant voltage and density of the electrolyte for 3 hours. The density of the electrolyte of a charged battery at 25 ° C should correspond to the data in Table. 30 for each climatic region.
When charging the Skoda battery, periodically check the temperature of the electrolyte and do not allow it to rise above +40 ° C. If the temperature reaches +40 °C, reduce the charging current by half or interrupt charging and cool the battery down to +27 °C.
Charging is stopped when abundant gas evolution begins in all battery cells, and the voltage and electrolyte density during the last three measurements (carried out 1 hour after the battery is turned off) will remain constant.
If at the end of charging the Skoda battery, the density of the electrolyte (determined taking into account the temperature correction) differs from that indicated in Table. 30, correct it. With increased density, remove some of the electrolyte and add distilled water. If the density of the electrolyte is below the norm, then, having taken a part of it from the cell, add electrolyte of increased density (1.4 g/cm3).
After adjusting the density of the electrolyte, continue charging the battery for another 30 minutes to mix the electrolyte. Then disconnect the battery and after 30 minutes measure the electrolyte level in all cells. If the electrolyte level is below normal, add electrolyte, the density of which corresponds to the given climatic region (see Table 30). If the electrolyte level is above normal, remove excess electrolyte with a rubber bulb.

See also: Checking battery charge. Fuse box Skoda Octavia.

Source: http://skoda-octavia2.ru/index.php/skhema-elektrooborudovania/204-zaryadka-akkumulyatora-shkoda.html