PLEASE NOTE THAT THE DC HEAD IS M8 CONNECTORS WHEN WE ARE SHIIPING.THANK YOU FOR YOUR ATTENTION . Item No.: UY240 Input : 110V/220V, 47-63HZ Specification : DC12V 20Amp Constant Charging Voltage : 14.6V (4s lifepo4 battery) Constant Charging Current :20A Charging Mode : 3 Stages, CC, CV, Trickle Material : Aluminum alloy with Fan Dimension : 170*90*50mm Net Weight :1kg Application : Electric Vehicles & Tools Various Protection : Over current , Over Voltage , Over Temperature , Short Circuit and Reverse Polarity. Warranty: 12months Products can be Customized! ​--------------------------------------------------------------------------------------------- Features: Smart charger for this product. The use of switching power supply technology, superior performance electric bicycle ,e-golf cars ,Family battery storage system lithium battery charger dedicated, It has the characteristics of the following advantages: 1. CE &CB& ROHS Certified, Safety and High Quality. 2. Full automatic transition of CC, CU and Float/cut-off. 3. Precise limit of voltage & current, guarantee fully charged and avoid over charge. 4. Protections: over current, over voltage, short circuit and reverse polarity. 5. High Efficiency: 95%-98%, PFE: 0.96, Eco-friendly. 6. Two LED indicators, Aluminium, elegant and reliable.