Charging the battery

• When charging a battery installed on a car, first disconnect the negative wire from its terminals, and then the positive one, so that there is no damage to electrical parts.
• The charging current is usually¹/₁₀ part of the battery capacity.
• In the case of fast charging due to lack of time, etc., the charging current should never exceed the battery capacity indicated in amps.
• The battery is fully charged if:

- the density of the electrolyte has reached 1.250-1.290 and remains constant for an hour;

- the voltage of each battery cell has reached 2.5-2.8 V and remains constant for one hour.