DC to DC 25A 40A 50A RV Van Motorhome Caravan Solar Charger For 12V Lead Acid Lifepo4 lithium ion battery

1.Output Anderson connector(Red and Black wires) goes to the battery being charged (the auxiliary battery)
2. Alternator Input Anderson connector (Yellow and Black wires)goes to the main cranking battery.
3.SolarInput Anderson connector (Green and Black wires) connects to an unregulated solar panel.
4.The ignition wire (Blue) is optional, it depends on the vehicle alternator type.
For standard alternators, leave this wire disconnected and please ensure that the wire is well insulated to ensure it does not short out.
For vehicles with a smart alternator, please connect this wire to the switched ignition source (i.e., a point that supplies 12V only when the key is in the ‘ON’ position and disconnects when the key is in the ‘OFF’ position) usually this can be found in the vehicle’s fuse box and a fuse tap can be used.