Warning! The electrolyte contains sulfuric acid, so you should take precautions against it getting into your eyes, on your skin or clothes. If this does happen, rinse the area with plenty of water.
Connect the charger wires to the battery: "plus" to "plus", "ground" to "ground" (connect the "ground" wire first). First, disconnect all electrical consumers of the car.
Note: The battery can also be charged using a fast charger.
Caution! If the battery is frozen, allow it to thaw before charging. A fully charged battery freezes at -65°C, a half charged battery at -30°C, and a fully discharged battery at -12°C.
Unscrew the plugs from the battery and place them on the holes.
Warning! Charge the battery only in a well-ventilated area. When charging the battery in the car, keep the hood open.
Note: Normal charging current should be approximately 10% of the battery capacity (for example, in the case of a battery with a capacity of 55 Ah - 5.5 A).
Warning! Frequently charging the battery with a fast charger is NOT recommended. A new or long-unused battery CANNOT be charged with such a device!
The temperature of the electrolyte during charging should not exceed 55°C; otherwise, interrupt charging or reduce the charging current.
Charge the battery until gas starts to flow freely from all the cans or until three consecutive measurements are made (in 1 hour) the electrolyte density and voltage will not stop changing.
[Material copied from this portal OPELBOOK]
When charging, check the electrolyte level and add distilled water if necessary.
Check the density of the electrolyte in all the cans. If in one of the cans it differs significantly from the density in the others (for example, five cans show 1.26 g/ml, and one - 1.18 g/ml), which means the battery is faulty and needs to be replaced.
Allow the gas bubbles to escape for 20 minutes and then tighten the plugs.
Caution! Do not leave the engine running with the battery disconnected, as this will damage the electrical equipment.
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