2. The current normally used to charge the battery should be approximately equal to 1/10th of the battery capacity.
3. When performing fast charging due to lack of time, etc., the charging current should not exceed the battery capacity specified in amperes.
4. Determining the moment of completion of charging.
1) If the specific gravity of the battery electrolyte reaches 1.250 - 1.290 and remains constant for at least one hour.
2) If the voltage in each section reaches 2.5 - 2.8 V and remains constant for at least an hour.
Caution: Be careful and monitor the electrolyte level during charging, as it may increase. Charging near fire sources is not permitted due to the risk of explosion. Do not perform any operations during charging that may cause sparks. After the battery has finished charging, replace the element covers, wash the battery from the outside with clean water and wipe dry.