Smart battery charging with real-time indicator light display. Fast charging technology saves time and improves efficiency. Features over-current protection, leakage protection, full pulse charging, and multiple safety protections. Equipped with smart chips, SMT technology, and welded electronic components for reliable performance. Durable ABS flame-retardant housing provides fire resistance and enhanced safety. Automatically detects positive and negative terminals; delivers zero output if reverse polarity is detected. Intelligent timing system automatically shuts down when charging is complete to prevent overcharging. Includes temperature compensation that automatically powers off in high-temperature conditions. Specifications: Type: 48V 20AH Output Voltage: 4859V Output Current: 2.6 0.2A Input Voltage: 200220V, 50Hz Battery Parameters: 6-DZM-20 Dimensions: 18 x 8 x 6 cm (7 x 3 x 2.4 in) Color: Black Material: Plastic Package Contents: 1 x Electric Vehicle Charger Note: Other items not included. Lighting and display differences may cause slight color variations between image and actual item. Measurement error allowed: 13 cm.