Let’s understand how to top up battery water first done off the main switch of the inverter, then turn off the switch of the switchboard as well. And inverter battery has six cells, each of which has a  float indicator on the top. On this float indicator, there is a red collared level indicator which tells the water level of the battery. On this level indicator, there is a green cooler mark on the top and a red cooler mark at the bottom. If the level indicator is on the green cooler mark, it means that the cell is full of water. If the indicator is on the red mark, it means that the water level is less in the cell and it needs a top to fill water in the battery You need rubber hand gloves,    a plastic or glass funnel plastic container, and distilled water. Never use a metallic container or funnel in the process. It may cause harm to you or the battery where the rubber gloves and remove the float indicator, take the battery water in a plastic mug, then folded into the battery cell with the help of a funnel. After pouring water, put back the float indicator and check that the level indicator is on the green mark Remember, overfilling the cell can also be dangerous for the battery. Now turn on the inverter and the switchboard. thanks for reading how to top up battery water