Daygreen Step Up DC DC Converter 12V to 24V Car Power Converter Boost Voltage Regulator 72W Module Non-Isolated

Wiring: INPUT+ to BAT+, INPUT- to BAT-, OUTPUT+ to LOAD+, OUTPUT- to LOAD-Reminder: Never reverse the polarity. Use the enough big cable to avoid the voltage drop. Never connect to solar panel or wind turbine. Never charge the battery. Keep good air convection. Daygreen P/N: H03-12-24 Efficiency: 95% Input Voltage: 11-16VDC Output Voltage: 24VDC Output Current: 3A Ripple: 200mVp Line Regulation: ±0.2% Load Regulation: ±0.2% Voltage Accuracy: ±1.5% Enclosures: IP68 Dimension: 66*59*24mm Net Weight: 0.12kg Case Operating Temperature: -40~85°C Certificates: CE Rohs Warranty: 1 year MTBF: 100,000 hours Application: 12VDC battery of vehicles as input power to 24VDC appliances as output load. Questions How to choose the correct current for loads? For example, if the max current of your load device is 10A, then choose 10A/0.8=12.5A at least for resistive loads according to international standard. If the load device is motor or compressor, then you may choose 10A/0.5=20A according to real testing result since the motor and compressor starting current may be 2-3 times than nominal current.