What is the main function of the hole on the battery cap of the stacker?

The primary function of the hole on the battery cap of the stacker is to ventilate. This ventilation is crucial because as the battery charges and discharges, gases such as hydrogen and oxygen can be produced as a byproduct of the chemical reactions taking place inside the battery. If these gases are not properly vented, they can build up pressure within the battery, potentially leading to hazardous situations, including the risk of explosion.

The vent hole is designed to safely release these gases while preventing the escape of electrolyte fluid. Proper ventilation helps maintain the overall health and safety of the battery, ensuring that it operates efficiently and reducing the risk of damage or malfunction over time. Understanding the role of ventilation in battery maintenance is critical for operators and technicians who work with equipment like stackers.