It spills not only distilled water but also electrolyte. Wipe with a hot towel. Of course, when wiping, we must unplug the bus before operation.
In this case, the electrolyte should be wiped off, or washed with boiling water. During the charging and discharging process of forklift battery, the water in the electrolyte will be gradually reduced due to electrolysis and evaporation, resulting in a decrease in the electrolyte level.