Smart battery charger with flashing light indicator for real-time charging status. Fast charging technology saves time and improves efficiency. Features over-current protection, leakage protection, full pulse charging, and multiple safety protections. Built-in smart chips with SMT technology and welded electronic components for reliable performance. Durable ABS flame-retardant housing provides fire resistance and enhanced safety. Automatically identifies positive and negative terminals; delivers zero output if reversed. Intelligent timer function automatically shuts off when charging is complete to prevent overcharging. Includes temperature compensation that automatically powers off in case of overheating, especially during high-temperature summer conditions. Specifications: Type: 48V 20AH Output Voltage: 48-59V Output Current: 2.6 +/- 0.2A Input Voltage: 200V-220V 50Hz Battery Parameters: 6-DZM-20 Size: 18x8x6cm / 7x3x2.4in Color: Black Material: Plastic Package Contents: 1 x Electric Vehicle Charger Note: Light shooting and different displays may cause the color of the item in the picture to vary slightly from the actual product. Measurement allows an error of +/- 1-3cm.