12V to 13.8V 40A DC DC Step Up Adjustable Battery Charger

Wide input voltage from 11 to 16V Work for appliances from 0AMP to 40AMP automatically 12V battery to 13.8V battery  100% full rated power 100% full stable output current 100% burn-in test High-efficiency up to 95% Waterproof sealed Cooling by free air convection Surface mountable 3 years warranty Over-current, over-voltage protections Over-temperature protection According to: EN 61000-6-3:2007/A1:2011/AC:2012 EN 55014-1:2006/A2:2011 EN 60950-1:2006/AC:2011   Efficiency: 95% Input Voltage: 10-30V DC Output Voltage: 13.8V Output Current: 40A Ripple: 200mVp Line Regulation: ±0.2% Load Regulation: ±0.2% Voltage Accuracy:  ±1.5% Enclosures: IP68 Dimension: 220*130*50mm Net Weight: 2.2kg Operating Temperature: -40~85°C Certificates: CE, ROHS