USV with battery protection and surge protection for electronics and computers. Automatic voltage regulation (AVR) automatically increases low voltage step by step and reduces high voltage to a level suitable for your devices. Supports cold start and enables temporary battery operation when the mains supply fails. LCD graphic display shows operating modes, system parameters, and alarms in the form of texts and overview diagrams. Pure sine wave output in battery operation simulates mains power supply for the highest possible compatibility with servers and sensitive electronic systems with active power factor correction. Powerful safety features protect your home UPS from overloads, mains surges, short circuits, installation errors, and battery damage due to undervoltage. Intelligent battery management with a smart precision charging system optimizes the performance, lifespan, and reliability of batteries. Notification of battery failure enables analysis for early detection of battery faults for timely preventive maintenance.