The document discusses battery management systems (BMS). A BMS monitors and controls batteries to ensure optimal performance. It protects batteries from damage by minimizing risks and maximizing reliability and efficiency. BMS have applications in electric vehicles, space technology, and renewable energy storage. The document outlines the need for BMS, their applications, common battery types like lithium-ion, and plans to improve an existing BMS design through enhanced filtering, maximum power point tracking, and temperature monitoring.