Compact structure, small size, light weight, easy to carry and easy to use. Intelligent and responsible status display functions; High charging efficiency, battery life can be better protected. Its process is fully automated (constant voltage, constant current, float), can be automatically selected according to the battery charging mode and protection status and so on. Dimension (LxWxH): (15.2x10.2x5.9) cm / 5.98"x4"x2.32"; Charger power cord length: 80cm; Output line length: 40cm; Input voltage: 90-270V; Output voltage: DC 13.8V; Rechargeable battery: 12V 20AH-80AH; Max output current: 6A Material: Flame retardant ABS case Color: Yellow Quantity: 1 pc Instructions for use: 1. Keep the Battery charger when you use the output element summer on the battery positive and negative, the red clip to the positive (de), black clip to the negative (-) terminal and then connect the power supply, then you can be charged. 2. When in operation, the display is all green red area in the middle, in