How to water a forklift battery
There are manual and automated methods for watering. Whatever method you use to water your forklift battery, only water each cell until the top of the lead-acid plate is reached. These plates are usually visible a few cm below the cell cap.
Gravity feed system – With a large, suspended water tank, the operator fills the cells with a hose attachment, moving between cells until they are full. The operator manually gages the level of water in each cell and may need to use a torch to see.