Brand NewBattery Charger: Model CY1-12-5 The battery charger is conform to general rules for electrical devices on the boat or ship. It is specially used for the automatic compensating charge the battery which are used on the boat or ship.Basic Parameters:Input Voltage:AC42V.Frequency:50HZ/60HZ.Output Voltage:DC14.5VOutput Current:DC5AWeight:3Kg.Protection Class:IP56It makes full-wave rectification to the AC power source(42V) generated by the generator on boat. Then charge the battery. The charger current is stabilized at 5A by current inspection loop, and the voltage are controlled to be 14.5V by the voltage inspection loop when the battery is fully charged. This unit can be protected against the short-circuit and reverse polarity. Battery less electricity, plug in charger to 5 a, the green light is lit, when the voltage of the battery charger and 14.5 V, the charger automatically transferred to the floating charge, the yellow indicator.When the load power, charger automatically turn to normal, the above cycle.3 work instructions:Red light: alarm indication, the battery reverse connect or open circuitGreen light: charging indicator, the battery;Yellow lights: full instructions, batteriesFour, connection order:The output line red lines connect battery anode, LAN line connect battery cathode.The input line AC42V input power.