Unique reverse connect protection circuit. For improper operation the positive and negative of battery, don't need to replace the , only to reset the positive and negative in correct point. So the whole system will be more reliable. When charging, it has the function of limiting voltage and current to ensure the best charging effect. At the same time, it provides maximum protection for wind turbines and batteries. The controller can control the wind generator to automatically the battery. When the battery is fully charged, brake can be controlled automatically by the interior circuit. When the battery voltage declines to restore voltage , wind can automatically restart the battery charging, so as to protect the wind and the battery. The comprehensive protection. If the controller without but used in easy ooze water environment or the humidity is heavy, the controller is easy to be corroded and damaged. Our product adopts full completely design which adapt to the heavy humidity, salinity, such as ground water operational environment. The protection grade reaches the IP67 above, even in water it can steadily work normally for a long time. The product is made of aluminum alloy material, -resistant and has good quality.