Add Water To Battery Before Charging. The RIGHT way to charge and add distilled water is as follows. Should I add the water before or after its charge.

Unless the metal plates of the individual cells are exposed watering before charging can cause overflows and electrolyte imbalance. You should add water to the forklift battery after its charge. Only add enough water to cover the plastic element protector by ΒΌ or ΒΎ below the cells top.
The battery contains sulfuric acid so follow the correct safety procedures.
If you add more water before the battery is fully charged you run the risk of electrolyte overflow. If you add water to a forklift battery to the correct level before it goes on charge then there is an increased risk when the battery is charging and going through the gassing phase that the level will rise and spill out of the cells. Learn more about why forklift batteries need water. It offers a buffer between the internal plates as gassing occurs during charging and discharging.

