What should be checked on battery terminals to ensure proper function?

Checking for corrosion on battery terminals is crucial for ensuring proper function. Corrosion can create resistance in the connection between the battery and the electrical components relying on it. When corrosion forms, it appears as a white, powdery substance usually around the terminals. This buildup can prevent the free flow of electricity, leading to operational issues or a complete failure of the battery to power the equipment effectively. Consequently, regular inspection and cleaning of the terminals to remove any corrosion are fundamental to maintaining the battery's performance and ensuring reliable electrical connections.