A CCCV FCBC charger is a type of battery charger that uses a constant current, constant voltage (CCCV) charging method and includes a feature called a float-cum-boost charger (FCBC). This is commonly used in a variety of applications, including electric vehicles, backup power systems, and renewable energy systems. CCCV FCBC charger may include features such as overcharge protection, short-circuit protection, and temperature monitoring to ensure safe and effective charging.