What are the common faults of solar controllers?

The common faults of the solar controller are mainly divided into the failure to charge, the charging current is too small, the battery consumes power quickly, and the load cannot work.

1. The solar panel cannot charge the battery.
1. Confirm whether the solar panel is connected correctly, and whether the positive and negative poles are reversed.
2. Whether the solar panel is blocked.
3. Whether the specifications of the solar panel are correct. Whether the open circuit voltage meets the requirements of the controller.
4. Whether the power of the solar panel exceeds the rated value of the controller. Too much power may cause the solar controller to burn out.
5. Whether the battery is full, the controller enters the float charging stage when the battery is full, and the charging current will become very small.

Second, the battery power is not enough, will soon be out of power.
1. Whether the battery capacity design is reasonable, too small capacity, the use time is naturally short.
2. The battery is aging, the service life of the battery is generally 2-3 years, and the capacity of the battery is attenuated greatly, and the battery needs to be replaced regularly.
3. Check whether the battery is short-circuited during the installation process. The capacity of the battery damaged by the short circuit is greatly reduced.
4. The load power exceeds the design power.

3. The load cannot work
1. Confirm whether the working voltage of the load is consistent with the output voltage of the controller.
2. Whether the load is short-circuited and overloaded.
3. Has the controller load output been manually turned off?
4. Whether the battery voltage is too low or too high leads to load protection of the controller.