Smart battery charger with flashing light indicator for real-time charging status display. Fast charging technology saves time and improves efficiency. Features over-current protection, leakage protection, and full-charge protection for enhanced safety. Automatically identifies positive and negative terminals to prevent reverse polarity charging. Intelligent timer function automatically shuts down when charging is complete to prevent overcharging. Includes temperature compensation; automatically reduces output in high temperatures and shuts off if overheating occurs. Specifications: Type: 48V 20AH Output Voltage: 48-59V Output Current: 2.6 +/- 0.2A Input Voltage: 200V-220V 50Hz Battery Compatibility: 6-DZM-20 Dimensions: 18 x 8 x 6 cm (7 x 3 x 2.4 inches) Color: Black Material: ABS flame-retardant plastic Package Contents: 1 x Electric Vehicle Charger Note: Other items not included. Slight color variations may occur due to lighting and screen display differences. Measurement error allowed within +/- 1-3 cm.