Charging the battery

The removed battery should be charged once a month using a charger. Completely discharged batteries in the cold can freeze and burst, on the contrary, charged ones tolerate cold well.

Sequence of work

1. Connect the positive wire to the positive battery terminal, the negative wire to the negative (pic. 9.10).

2. The charging current should be about 10% of the battery capacity at first (e.g. approx. 8 A for a 74 Ah battery) and decrease during charging.

3. When charging the battery, some of the distilled water evaporates. In this case, bubbles of hydrogen and oxygen are formed. They are discharged through the ventilation holes in the battery cover. When they are mixed, an explosive gas is formed.

4. For this reason, make sure that the place where the battery is being charged is well ventilated. This is especially important if a high charging current is being used.

Warning! Sparks when plugging in and removing the charger terminals can cause a gas explosion. Be sure to take precautions.

5. The battery is fully charged if the density of the electrolyte does not change during two measurements taken one hour apart. After charging, check the electrolyte level in the battery. Top up with distilled water if necessary.