The electric forklift battery will generate gas during the charging process. The charging place should be well ventilated and there is no open flame around. The oxygen and acid gas generated during the charging process will affect the surroundings. When charging, half open the battery filling hole (liquid filling cover) to prevent excessive electrolyte (dilute sulfuric acid) from flowing out.
Unplugging the charging plug during charging will cause an arc. Turn off the charger before unplugging the plug. After charging, there is a lot of hydrogen around the battery, no open flame is allowed, and the cover on the battery should be opened for charging. It is better to charge the battery pack once every 1.5 months or 2 months.