Similar to a one way valve in hydraulic systems, this diode only allows current flow in one direction. This particular diode is selected specifically for our mini wind turbine generator.
The positive end of a diode is called the anode, and the negative end is called the cathode. Current can flow from the anode end to the cathode, but not the other direction. See photos for a visual explanation.
When installing with our mini wind turbine generator, install diode in the positive (+) wire with the white band oriented toward the battery.